Merge branch 'New3' of https://github.com/ayende/ravendb into R1369
Merge branch 'RavenDB-1369' of https://github.com/ayende/ravendb into TestBranch-1369
issue fixed: RavenDB-2163
used NProgress prgress bar and spinner to "inform" user about loading (when loading time is between 1sec and 10 sec)
used error message to inform user that waiting time is too long (when reaching 10 sec mark)
First commit for adding folders feature in the studio
- first version of reset counter
- don't replicate counter if only creating it with value=0
fix for counting the correct number of groups
fix for resetting unsaved or deleted counters
Merge branch 'master' of https://github.com/ayende/ravendb
fixed replication when resetting counter
Merge branch 'master' of https://github.com/grisha-kotler/ravendb
another fix for reset when the sum of negatives is bigger than the sum of positives
Merge branch 'master' of https://github.com/ayende/ravendb
added an option to reset a counter in the ui
added throw-away test (probably should be deleted later)
fix for deleting a counter storage with the correct path
fix for deleting a file system with the correct path
RavenDB-2015 Implemented versioning in database settings
Merge branch 'master' into adding-folders
fixed RavenDb_2327 & RavenDb_2294
RavenDb_2282 in progress , not finished yet
Merge branch 'master' of https://github.com/ayende/ravendb into RavenDb_3223

Conflicts:
	Raven.Studio.Html5/App/views/editDocument.html
	Raven.Studio.Html5/App/widgets/virtualTable/viewModel.ts
- fixed reset counter
- fixed server sending to check for last etag