Bump jRuby and Sass versions

Cleaned up some properties that were no longer used as removing them
seperatly would change the hash

build/build-tasks.properties

@@ -12,12 +12,12 @@ antcontribs.jar=${lib.dir}/ant-contrib-1.0b3.jar
 cssurlembed.jar=${lib.dir}/cssembed-0.4.5.jar
 
 #jRuby Properties
-jruby.version=1.7.1
+jruby.version=1.7.2
 jruby.jar=jruby-complete-${jruby.version}.jar
 
 #Gems
 gem.dir=${lib.dir}/jruby-compiled
-sass.gem=sass-3.2.3.gem
+sass.gem=sass-3.2.5.gem
 chunky_png.gem=chunky_png-1.2.6.gem
 fssm.gem=fssm-0.2.9.gem
 compass.gem=compass-0.12.2.gem
@@ -26,8 +26,3 @@ compass.gem=compass-0.12.2.gem
 jshint.jar=${lib.dir}/ant-jshint-0.3.1-deps.jar
 jshint.globals.file=${tasks.basedir}/jshint.globals.properties
 jshint.failbuild=false
-
-#Core project paths
-jssrc.dir=${tasks.basedir}/../src/js
-gridsrc.dir=${tasks.basedir}/../src/grids
-basesrc.dir=${tasks.basedir}/../src/base