rewritten proxy server for RavenDB-1603 tests
RavenDB-1715 Failing test: Raven.Tests.Issues.RavenDB_1603.CanPerformDumpWithLimit_Smuggler
Failing tests which shows that free space handling does not work for sections higher than 0
RavenDB-1714 Properly reading a long value from a slice pointer - it fixes free space handling
Use Slice.BeforeAllKeys instead of empty buffer
Merge branch 'RavenDB_1715' of https://github.com/ml054/ravendb into New3