Updated build.xml to only compile when files have been changed
Changed fileset for combineJavaScript.combineCesium to be the same as
the fileset provided by createCesiumJs
Removed combineJavaScript.combineWorker changes
Merge pull request #719 from cmorse/buildUpdate

Updated build.xml to only compile when files have been changed
Merge branch 'master' of github.com:AnalyticalGraphicsInc/cesium into examples