ContextCounter for hash bundling fixed; HashBundling works for one attribute fine, but not for more than one open attribute; Postgres-warnings occur when selecting more than one attribute and using hashbundling(e.g. WARNING:  problem in alloc set ExecutorState: detected write past chunk end in block 0x87d1628, chunk 0x87dbbc8
Merge branch 'pshk' of github.com:JulianEberius/DrillBeyond into pshk