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)
Merge branch 'master' of https://github.com/ayende/ravendb into RavenDB-2163
Minor
Merge branch 'RavenDB_2282' of https://github.com/maximburyak/ravendb
1. added progress bar when json loading
2. nprogress styling changed to be much bigger, also, coloring was changed.
3. removed the spinner.
RavenDB-2350 Added creating default configuration on new databases
Merge branch 'master' into RavenDB-2350
Merge branch 'master' of github.com:ayende/ravendb
Merge branch 'RavenDB-2163' of https://github.com/maximburyak/ravendb

Conflicts:
	Raven.Studio.Html5/Content/app.css
Avoid leaking a task in tests
Fix tests
Fix NRE
fix issue 2365 (Refresh Index' hides the index; never returns;)
missed
Better coding
Merge branch 'RavenDB-2365' of https://github.com/ReginaBricker/ravendb
Remove generated files
RavenDB-2350 Code cleanup
Avoiding leaking task
RavenDB-2350 Removed unneeded comments