Bugfix: rewinding of bit position of the read pointer
Bugfix: rewinding of bit position of the read pointer

Due to a local variable which is naturally discarded at the end of the method,
rewinding of position within the same byte was not working. This resulted in
incorrect read position when a number of bits was directly read from the inflater.
This case happens in the unpacking of track model clusters when reading the
number of clusters stored on one padrow.

mkrzewic/AliRoot,ALICEHLT/AliRoot,alisw/AliRoot,ALICEHLT/AliRoot,miranov25/AliRoot,miranov25/AliRoot,coppedis/AliRoot,jgrosseo/AliRoot,shahor02/AliRoot,ALICEHLT/AliRoot,miranov25/AliRoot,miranov25/AliRoot,alisw/AliRoot,ecalvovi/AliRoot,mkrzewic/AliRoot,sebaleh/AliRoot,alisw/AliRoot,miranov25/AliRoot,ecalvovi/AliRoot,ecalvovi/AliRoot,alisw/AliRoot,ecalvovi/AliRoot,alisw/AliRoot,shahor02/AliRoot,mkrzewic/AliRoot,coppedis/AliRoot,ecalvovi/AliRoot,coppedis/AliRoot,sebaleh/AliRoot,ecalvovi/AliRoot,sebaleh/AliRoot,mkrzewic/AliRoot,miranov25/AliRoot,shahor02/AliRoot,jgrosseo/AliRoot,alisw/AliRoot,sebaleh/AliRoot,shahor02/AliRoot,miranov25/AliRoot,jgrosseo/AliRoot,ALICEHLT/AliRoot,sebaleh/AliRoot,ALICEHLT/AliRoot,coppedis/AliRoot,alisw/AliRoot,sebaleh/AliRoot,coppedis/AliRoot,ecalvovi/AliRoot,shahor02/AliRoot,jgrosseo/AliRoot,sebaleh/AliRoot,jgrosseo/AliRoot,mkrzewic/AliRoot,alisw/AliRoot,jgrosseo/AliRoot,coppedis/AliRoot,coppedis/AliRoot,shahor02/AliRoot,coppedis/AliRoot,miranov25/AliRoot,ALICEHLT/AliRoot,ALICEHLT/AliRoot,jgrosseo/AliRoot,shahor02/AliRoot,mkrzewic/AliRoot,mkrzewic/AliRoot