CRAFTERCMS-202: Multiple forms open for the same content

While a form is open, clicking to edit the same content must not open
another form (window) -even if the form is reloaded.
CRAFTERCMS-202: Multiple forms open for the same content

While a form is open, clicking to edit the same content must not open
another form (window) -even if the form is reloaded.
Merge remote-tracking branch 'david/master'
CRAFTERCMS-210: Each RTE makes a call to /site/sitename

If there are no configured stylesheets, each RTE makes a call to
/site/sitename which results in a 500.
Merge branch 'master' of https://github.com/quiaro/studio
Merge remote-tracking branch 'david/master'
CRAFTERCMS-212
Fixed issue that was causing timeout deadlock on object state table
CRAFTERCMS-214
Fixed issue that was causing server to completely block on following use case:
1) Schedule content to go live at some time at future
2) When content is about to be published, delete it
Merge pull request #59 from dejan-brkic/CRAFTERCMS-212

CRAFTERCMS-212
Merged
Merge pull request #60 from dejan-brkic/CRAFTERCMS-214

CRAFTERCMS-212; CRAFTERCMS-214
Merged
Merge remote-tracking branch 'origin/master' into CRAFTERCMS-188