An initial attempt at using QFileSystemWatcher
More work on file system watching
Merge branch 'searchwatcher' into file_watcher
Fixed FileController to update filechanges every 15 seconds.
Fixed NHSDatabaseController so stemm queryterms.
Updated change directory methods.
Fixed error in databasecontroller.
Remove the qt remnants in the cmake script
Remove hard-coded absolute file-paths
Merge branch 'file_watcher'

Conflicts:
	search/src/NHSDatabaseController.cpp
	search/src/NHSFileController.cpp
	search/src/NHSFileController.h