Subsets ground work
Use db context manager with baked in timeout detection
Merge pull request #203 from cggh/SQL_timeout_rework

Use db context manager with baked in timeout detection
Add/remove subsets
Correct credential func to refactored class
Merge branch 'master' of github.com:cggh/panoptes

Conflicts:
	servermodule/panoptesserver/subset_create.py
Autocommit keyword isn't liked by certain mysqldb libs
Adapt delete subset to DBCursor
store subsets
Rework query display string
Enable reuse of virtualenv
Merge branch 'master' of github.com:cggh/panoptes
Bugfix
Merge branch 'master' of github.com:malariagen/panoptes
Improved datatable to view action
Icon improvements
Manipulate subset content
Stored subsets styling
Show subset member count
Bugfix