MissingNewLineAtEndOfFileCheck should skip empty files

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/18?closed=1

• MissingNewLineAtEndOfFileCheck should skip empty files

Support CSS Fonts Module Level 4

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/17?closed=1

• Support CSS Fonts Module Level 4

Add parameter to 'experimental-xxx-usage' rules to flag some properties/@-rules/pseudos/functions/identifiers as non-experimental

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/16?closed=1

• Add parameter to 'experimental-xxx-usage' rules to flag some properties/@-rules/pseudos/functions/identifiers as non-experimental
• Link to "quick try" doesn't work

Add parameter to 'experimental-properties-usage' rules to flag some properties as non-experimental

fix102

Fix #102 Add parameter to 'experimental-properties-usage' rules to fl…

Parser does not support identifiers starting with "-#"

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/15?closed=1

• Parser does not support identifiers starting with "-#"

Add exclusions on font-family-not-ending-with-generic-font-family for icon fonts

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/14?closed=1

• Add exclusions on font-family-not-ending-with-generic-font-family for icon fonts
• column-count check fails at "auto"

Adding support for webpack css-loader

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/13?closed=1

• FP on rule multiple-variable-declarations-same-scope within mixin calls when parameters are the same variables
• scss:unknown-pseudo: support for webpack css-loader

Add a rule that forbids using types in selectors

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/12?closed=1

• Add a rule that forbids using types in selectors
• Make the plugin compatible with SonarQube 6.7

Bug fixes

Release notes: https://github.com/racodond/sonar-css-plugin/milestone/11?closed=1

• LESS: Minus ('-') is wrongly considered as unknown function
• Remove deprecated rule selector-naming-convention
• FP on rule class-selector-naming-convention within mixin calls

LESS: Minus ('-') is wrongly considered as unknown function

#67

Fix #67 LESS: Minus ('-') is wrongly considered as unknown function