Several cosmetic changes

-Removed a space from the 'save stage' button in stage edit page.
-Changed an error message so it displayed '1MB' rather than '1mb'.
Another potential fix

Should reset the stage if unassigning media from stage edit page
fixed compile issue with previous fix
Revert "fixed compile issue with previous fix"

This reverts commit eac153ff8ab322f1bbd8c2c11e31ace2b9ae0fb7.
Revert "Another potential fix"

This reverts commit 286706bca17739a90ad48ed8b328c50382593953.
potential fix

attempting to fix media unassign in stage edit not working
Revert "potential fix"

This reverts commit 80a3404701e9103df6bd5b6bd3d303ee631ea624.
Fix for #193

Should no longer be causing problems in the stage edit page
indentation fix

fixed an indentation error with previous commit
another small fix
comments

Added comments for my changes
Merge branch 'master' of https://github.com/AUTUpStageTeam/UpStage2013

Conflicts:
	server/src/upstage/pages.py
Merge pull request #248 from nikosphillips/master

Fix for #193