file cache.
correct test.
add variables for testing.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'

Conflicts:
	META-INF/plugin.xml
	intellibot.jar
	src/com/millennialmedia/intellibot/psi/ref/RobotFileManager.java
update test file
Merge pull request #76 from mtrubs/master

improve test case