Catch up CHANGES.txt for recent deprecation removals.
Clean up some warnings.
Remove deprecated WebServer#addExecutionLimitFilter(int, Guard).
Use tx diff to reclaim unused records.

Instead of recording dynamic records for labels as deleted in the
transaction log, use the fact that we store both the state before the
transaction and the state after, to only require storing the used ones.
The set of unused records can be computed as the difference between the
set of records used before and the set of records used after.

In effect reverts (most of) 069edcfe7dcbb07f43599c91ec76c154f49b1934.
Ensure that we remove index entries when labels and properties of a node are changed in the same transaction

When we build REMOVE NodePropertyUpdates based on node commands we read the before value from
the store. This is incorrect when the property and labels have changed in the same transaction and can cause
IndexingService to not correctly remove index entries.

To side-step this issue, this commit builds a lookup table from (nodeId, pkId) to NodePropertyUpdate
for CHANGE updates in WriteTransaction. These updates contain the correct before value and lead the proper
de-indexing.

A solution that doesn't need a lookup table would be nice but this fixes it for now.
Merge pull request #1445 from benbc/2.0-deprecation-CHANGES.txt

Catch up CHANGES.txt for recent deprecation removals.
Merge pull request #1451 from boggle/2.0-index-update-using-before-image

Ensure that we remove index entries when labels and properties of a node...
Merge pull request #1450 from thobe/2.0-delete-by-delta

Use tx diff to reclaim unused records.
Remove QuickReadPerformanceTest.

This class was most likely added to org.neo4j.graphdb by mistake.
Merge pull request #1452 from jakewins/2.0-remove-deprecated-stuff

2.0 remove deprecated stuff
Merge pull request #1453 from apcj/2.0-ccheck-node-to-label-scan

Consistency checker: verify that nodes in the node store are in the label scan store.
Merge pull request #1454 from chrisvest/remove-quick-read-performance-test

Remove QuickReadPerformanceTest.
Consistency checker: check that nodes are indexed.

o Directly use PropertyStore instead of the RecordAccess API
  to reduce code duplication at the expense of deferred check mechanism.
o This could prove to be an expensive check because of the need to read
  whole property chain for each node.