Added Util Class
Refactored LSYC and HE to use shared base class
HE_LOCAL_EXECUTOR_SERVICE fleshed out

Conflicts:
	samples/HE_Sample.java
Added exemptions from nulls and shutdowns

All that's left is the description

Conflicts:
	src/com/mebigfatguy/fbcontrib/detect/HangingExecutors.java
Finalized message for HE
Removed debugging and organized imports
Dogfooded fb fix
Merge pull request #14 from kjlubick/forPullReq_HE

Added a new Detector: Hanging Executors
add copyright header
make new detectors experimental
add docs for HE
more copyright headers
simple cleanups
HE->HES to avoid confusion with parent findbugs detector
simple cleanups
formatting
more detector docs
Merge remote-tracking branch 'upstream/master'

Conflicts:
	etc/bugrank.txt
	etc/findbugs.xml
	etc/messages.xml
	src/com/mebigfatguy/fbcontrib/detect/HangingExecutors.java
	src/com/mebigfatguy/fbcontrib/detect/LocalTypeDetector.java
	src/com/mebigfatguy/fbcontrib/utils/OpcodeUtils.java
This was renamed
Missed a rename in the merge