Cleaned up ingest manager code. added message to ekyowrd serach output
Merge pull request #330 from jawallace/miscBugFixes

Various Bug Fixes
Added other file metadata to index
Merge https://github.com/sleuthkit/autopsy into miscBugFixes
Added MAC time to Keyword Hit nodes selected under Results node.
Fixed NPE if keyword search results data result viewer closed before query is done running.