Merge pull request #109 from alexanderson/master

Added pstats viewer
Fixed alembic downgrade method
analyse pstats, show them in collapsable table
Taken out redundant variable
Merge pull request #110 from alexanderson/master

Integrated pstats browser into UI
Alex's pull
Blarg.
Fixed start date/end date graph stuff
Merge pull request #111 from dannybutler/master

Fixed start date/end date graph stuff
Merge branch 'master' of https://github.com/artsalliancemedia/cherry_pyformance