Commit
c468efbfee54fe86041b033dbb6f0019a67f5389
by Zoltan Ujhelyi[565008][561721][562320][565196][564381] Documentation updates
* Mention parameterless patterns in documentation
* Removed removed AbstractMultisetAggregationOperator reference from
aggregator documentation
* Documentation for imports was extended
* A few small mistakes were fixed
Change-Id: Ie968a42267189a1a6229fea11cbcc2710ec1f508
Signed-off-by: Zoltan Ujhelyi <zoltan.ujhelyi@incquerylabs.com>(cherry picked from commit eb25aa27eb054863abe56ad406d3cedea7d76af5)