added thresholdcount in config
graceful error handler
Merge branch 'gf4' of https://github.com/qcri-social/AIDR into gf4
added @ sign for tweeter name handler
Merge branch 'master' of https://github.com/qcri-social/AIDR

Conflicts:
	aidr-tagger/config/config.txt
commiting new features for release 1.1.0
update txt
Merge remote-tracking branch 'origin/master'
aidr-manager: Collection - add constraint for name column.
Language and date/time format update
Merge remote-tracking branch 'origin/master'
Added "Note" section to collection creation home page.
Applied update on Ji's commit
taskbuffer limit change to 10k
add unique constraint to the name field of aidr_fetch_manager db.
roll-back date/time format on collection detail/history
Merge remote-tracking branch 'origin/master'
revert date/time format to default format due to firefox issue
aidr-manager: Add running duration to the collection. User interface, DB and saving.
aidr-manager: Add moment.js. Minor changes.