RavenDB-2174: implemented logs changes api: server-side: ready; client-side: very basic ui.
for now, server side is based on database changes api.
RavenDB-2174: impproved ui for lobasic ui for viewing logs
RavenDB-2174: started implementing multiresource logging support - having issues with authentication and permissions
RavenDB-2174: finished implementing server side multi-database trace support
RavenDB-2174: changed server side implementation - now web socket transport registers to RequestManager
RavenDB-2174: implemented web-socket server and client side, some last finishes left on the client side
RavenDB-2174: finished client side, after synchronizing with marcin's plans for RavenDB-2176 issue.
for now, there is no eventSource support for httpTrace
Merge branch 'master' of https://github.com/ayende/ravendb into RavenDB-2174

Conflicts:
	Raven.Database/Server/Connections/WebSocketsTransport.cs
	Raven.Studio.Html5/App/common/extensions.ts
merge fix
- Fixed: RavenDB-2574. Introduced an artificial barrier to ensure that Listeners get called before remote notifications can be processed by the user.
Merge branch 'master' of https://github.com/Corvalius/ravendb