added on auto-throttle LOH compaction if low on memory.
* added the aforementioned tweak
* changed Raven.Database to .net 4.5.1
* change Raven.Tests to .net 4.5.1
* changed all projects to .net 4.5.1
* added LOH compation setting to AdminController --> on loh-compation endpoint
RavenDB-2129 Client API doesn't read replication docs from destination
RavenDB-2033 and RavenDB-2090 If WriteFileGather finishes synchronously then we shouldn't check LastWin32Error on windows server systems
RavenDB-2139 NewTransaction(TransactionFlags.ReadWrite) can cause timeout exception (30s), now we are updating _lastSyncedJournal after we wrote to data file and after we got txw lock
issue 1816 looks fixed
Merge branch 'master' of github.com:ayende/ravendb into loh-compaction
Merge branch 'RavenDB-2129' of https://github.com/ppekrol/ravendb
Merge branch 'RavenDB-2033-2090' of https://github.com/arekais/ravendb
Merge branch 'master' of https://github.com/grisha-kotler/ravendb
Merge branch 'loh-compaction' of https://github.com/myarichuk/ravendb
Better approach for forcing LOH compaction
Updating to 4.5.1
Merge branch 'RavenDb-1816' of github.com:ReginaBricker/ravendb
Fixing RavenDB-1816
added webshim plugin for verifying input
Merge branch 'master' of https://github.com/ayende/ravendb
periodic backup
-fields validation
-an option to deactivate
prevent periodic backup on server side when it's disabled
WhatsChanged finished + test updated