Fix casing issue that was causing compile error.

[zendern]

Code would not compile due to casing issue between class and filename.

[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model for javafx-d3-demo:javafx-d3-demo:pom:0.0.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-jar-plugin is missing. @ line 146, column 14
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] javafx-d3
[INFO] javafx-d3-demo
[INFO]
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[INFO] Building javafx-d3 0.0.1-SNAPSHOT
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[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ javafx-d3 ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ javafx-d3 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO] Copying 13 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.3:compile (default-compile) @ javafx-d3 ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 190 source files to /Users/zender/dev/projects/delphicdb/workspace/javafx-d3/javafx-d3/target/classes
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building javafx-d3-demo 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ javafx-d3-demo ---
[INFO]
[INFO] --- maven-resources-plugin:3.0.0:resources (resource-execution) @ javafx-d3-demo ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] ignoreDelta true
[INFO] Copying 18 resources
[INFO] Copying file org/treez/javafxd3/d3/democases/axis/AxisComponent.css
[INFO] Copying file org/treez/javafxd3/d3/democases/barchart/BarChart.css
[INFO] Copying file org/treez/javafxd3/d3/democases/behaviors/ZoomDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/chorddiagram/ChordDiagram.css
[INFO] Copying file org/treez/javafxd3/d3/democases/focus/FocusAndContext.css
[INFO] Copying file org/treez/javafxd3/d3/democases/geom/hull/HullDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/geom/voronoi/VoronoiTessellationDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/layout/ClusterDendogram.css
[INFO] Copying file org/treez/javafxd3/d3/democases/svg/brush/ordinal/OrdinalBrushingDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/svg/brush/scatter/ScatterPlotMatrixDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/svg/brush/slider/BrushAsSliderDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/svg/brush/transitions/BrushTransitionsDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/svg/line/LineDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/svg/symbol/SymbolDemo.css
[INFO] Copying file org/treez/javafxd3/d3/democases/update/GeneralUpdatePattern1.css
[INFO] Copying file org/treez/javafxd3/d3/democases/update/GeneralUpdatePattern2.css
[INFO] Copying file org/treez/javafxd3/d3/democases/update/GeneralUpdatePattern3.css
[INFO] Copying file org/treez/javafxd3/d3/democases/xy/Xy.css
[INFO] ignoreDelta true
[INFO] Copying 1 resource
[INFO] Copying file readme.csv
[INFO]
[INFO] --- maven-compiler-plugin:3.5.1:compile (compile-execution) @ javafx-d3-demo ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 76 source files to /Users/zender/dev/projects/delphicdb/workspace/javafx-d3/javafx-d3-demo/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /Users/zender/dev/projects/delphicdb/workspace/javafx-d3/javafx-d3-demo/src/main/java/org/treez/javafxd3/d3/democases/svg/brush/scatter/ScatterplotMatrixDemo.java:[36,8] class ScatterPlotMatrixDemo is public, should be declared in a file named ScatterPlotMatrixDemo.java
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] javafx-d3 .......................................... SUCCESS [  5.841 s]
[INFO] javafx-d3-demo ..................................... FAILURE [  1.549 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
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[INFO] Total time: 7.508 s
[INFO] Finished at: 2017-02-11T21:23:33-05:00
[INFO] Final Memory: 37M/3925M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.5.1:compile (compile-execution) on project javafx-d3-demo: Compilation failure
[ERROR] /Users/zender/dev/projects/delphicdb/workspace/javafx-d3/javafx-d3-demo/src/main/java/org/treez/javafxd3/d3/democases/svg/brush/scatter/ScatterplotMatrixDemo.java:[36,8] class ScatterPlotMatrixDemo is public, should be declared in a file named ScatterPlotMatrixDemo.java
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :javafx-d3-demo```