Merge branch 'master' of https://github.com/ayende/ravendb into RavenDB-2293
- moving dialog in when pressing choose columns in documents page
- scroll bar for custom columns option
Merge branch 'master' of https://github.com/ayende/ravendb into RavenDB-2293

Conflicts:
	Raven.Studio.Html5/App/views/selectColumns.html
removed double definition