Merge remote-tracking branch 'image_analyzer/develop' into image_analyzer

Conflicts:
	.gitattributes
	.gitignore
	build.xml
	nbproject/build-impl.xml
	nbproject/genfiles.properties
	nbproject/platform.properties
	nbproject/project.properties
	nbproject/project.xml
project changes to work as a module in Autopsy
Merge pull request #846 from millmanorama/image_analyzer

project changes to work as a module in Autopsy
changed options panel icon
Merge branch 'image_analyzer' into with_image_analyzer_module
move stuff onto/off  jfx thread; check for no open case and npe
Merge remote-tracking branch 'upstream/develop' into with_image_analyzer_module
Added skeleton for User Guide
move quick start doc to user dc
Added performance optimization notes to user guide
Updated main page
Merge remote-tracking branch 'upstream/with_image_analyzer_module' into with_image_analyzer_module
put db unlock in finally
refactor code to simplify ui initialization and remove blocking calls that prevented ui from displaying
Merge pull request #848 from millmanorama/with_image_analyzer_module

refactor code to simplify ui initialization and remove blocking calls that prevented ui from displaying
Merge remote-tracking branch 'upstream/develop' into with_image_analyzer_module
updated ImageAnalyze doxygen
Merge remote-tracking branch 'upstream/with_image_analyzer_module' into with_image_analyzer_module
ensure GUI update on JFX thread
Merge remote-tracking branch 'upstream/develop' into with_image_analyzer_module