Added DeleteOldFilesUtil and Tests for it
Implemented deletion of old COPE files (older than 2 days) from client workspace
Merge branch 'eventFilesDeletion' of github.com:altern/clientRecorder into eventFilesDeletion
moved the delete old events test
Made protected
Removing event files from all versioned folders
Moved computation in tests
The delete util now receives its root path
Directory is traversed recursively

And the purge time is compute via calendar operations
code cleanup
Merge pull request #1 from cdmihai/eventFilesDeletion

Event files deletion
Merge pull request #89 from altern/eventFilesDeletion

deletion of old files from client workspace