Bump shiroRev from 1.7.0 to 1.7.1 (#148)

Bumps `shiroRev` from 1.7.0 to 1.7.1.

Updates `shiro-guice` from 1.7.0 to 1.7.1

Updates `shiro-web` from 1.7.0 to 1.7.1
- [Release notes](https://github.com/apache/shiro/releases)
- [Changelog](https://github.com/apache/shiro/blob/master/RELEASE-NOTES)
- [Commits](apache/shiro@shiro-root-1.7.0...shiro-root-1.7.1)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -366,7 +366,7 @@ sourceSets {
 }
 
 dependencies {
-  def shiroRev = '1.7.0'
+  def shiroRev = '1.7.1'
   def jettyDep = '9.3.11.v20160721'
 
   compile project(':api')