Up the minimum heap size example to 16M
Fixes problem with compiling queries with NOT expressions in them
Enabled more tests for tx event handlers

so that more is tested, also afterCommit(). Some issues was exposed which
were also fixed.
Parse comments into a NoopApp, preventing NPE in evaluation
Merge pull request #1716 from systay/not-rewrite

Fixes problem with compiling queries with NOT expressions in them
Merge pull request #1718 from chrisvest/comments-in-shell

Parse comments into a NoopApp, preventing NPE in evaluation
Merge pull request #1717 from tinwelint/2.0-more-tx-eh-tets

Enabled more tests for tx event handlers
Adds payload to state transition logging, for forensics purposes
Merge pull request #1715 from chrisvest/gc-configs

Up the minimum heap size example to 16M
Faster initial population of label scan store.

Improve write performance by refreshing the lucene searcher less often.
Refreshing less often is possible if writes are ordered so that we never
need to read our own writes during a single batch of writes, and we can
consider initial population as one very large batch.

A new facade LabelScanWriter expresses the batching of writes, repolacing
LabelScanStore#updateAndCommit. It also mirrors the way we use LabelScanReader.