Added medical image viewer option
merged
modifying files as suggested by Eric, Pull request for medical image
viewer
forgot to commit some changes
Merge remote-tracking branch 'upstream/master'
replaced "codalab" templatetag with "codalab_tags"
Merge remote-tracking branch 'upstream/master'

Conflicts:
	codalab/apps/web/templatetags/codalab.py
added example to template
saving spot
merges master
making diff for PR
Changed the variable name to result_location
by mistake removed enable_detailed_results
Another commit to pass the build
adds competition.secret_key, view modifications and tests
reoves cruft
trying to debug problems, can't find a solution to the edit form. pages are ordered but when you clicck them nothing really happens...
adds dropdown to submissions page
fixes previous phase viewing and colors
adds phase.description & view