Ast rewriter for transforming ORs of Equals to IN collection

o remove code which was needed for handling equals
o cleanup on normalizeEqualsArgumentOrder

Add rewriter for merging IN collection predicates when relates to the same lhs and contain only constant values

Revert non-urgent changes before release.
This reverts commit c3f61a63.

Revert non-urgent changes before release.
This reverts commit c504ff46.

Revert non-urgent changes before release.
This reverts commit 311c8388.

Readme cleanup in the distribution packages.

Bump concurrent lock holder limit to 4680

o fix conflicts between Ronja rewriters and legacy planner
o added more index acceptance tests
o fix the legacy planner builder to make sure indexes can use values generated by unwind

Csv file format docs

Documentation fixes.

o add a documentation test about quoted strings and escape chars

2.1 merge 2.0

Batch importer makes use of a special window pool that reuses some of the
 buffers it requires. In some cases, it is possible for previous uses
 of a buffer to leave state in them, resulting in subsequent passes
 over the store to write out content that might cause problems
 later on. In particular, during store migration of a store that
 has large not in use record spans in it, it is possible that
 the target store would have contents in the same offesets that
 has not properly zeroed out records.
This fix ensures that when the buffer is going to be reused it
 is zeroed out first.

Conflicts:
	community/cypher/cypher-compiler-2.0/src/main/scala/org/neo4j/cypher/internal/compiler/v2_0/parser/Expressions.scala
	community/cypher/cypher-compiler-2.0/src/main/scala/org/neo4j/cypher/internal/compiler/v2_0/pipes/ExtractPipe.scala
	community/cypher/cypher-compiler-2.0/src/main/scala/org/neo4j/cypher/internal/compiler/v2_0/pipes/LoadCSVPipe.scala
	community/cypher/cypher-compiler-2.0/src/main/scala/org/neo4j/cypher/internal/compiler/v2_0/spi/DelegatingQueryContext.scala
	community/cypher/cypher-compiler-2.0/src/main/scala/org/neo4j/cypher/internal/compiler/v2_0/spi/LoadCSVQueryContext.scala
	community/cypher/cypher-compiler-2.0/src/main/scala/org/neo4j/cypher/internal/compiler/v2_0/spi/QueryContext.scala
	community/cypher/cypher-compiler-2.0/src/test/scala/org/neo4j/cypher/internal/compiler/v2_0/parser/CypherParserTest.scala
	community/kernel/CHANGES.txt
	community/kernel/src/main/java/org/neo4j/kernel/impl/transaction/RWLock.java
	enterprise/backup/src/main/java/org/neo4j/backup/BackupTool.java
	packaging/standalone/standalone-advanced/src/main/distribution/text/advanced/CHANGES.txt
	packaging/standalone/standalone-community/src/main/distribution/text/community/CHANGES.txt
	packaging/standalone/standalone-enterprise/src/main/distribution/text/enterprise/CHANGES.txt

Conflicts:
	community/kernel/CHANGES.txt
	community/kernel/src/test/java/org/neo4j/kernel/impl/transaction/RWLockLeakTest.java
	enterprise/cluster/src/main/java/org/neo4j/cluster/protocol/atomicbroadcast/multipaxos/MultiPaxosContext.java
	enterprise/cluster/src/test/java/org/neo4j/cluster/protocol/atomicbroadcast/multipaxos/MultiPaxosServer.java
	enterprise/ha/src/main/java/org/neo4j/kernel/ha/HighAvailabilityConsoleLogger.java
	enterprise/ha/src/test/java/org/neo4j/ha/TestPullUpdatesApplied.java
	manual/pom.xml
	packaging/standalone/standalone-advanced/src/main/distribution/text/advanced/CHANGES.txt
	packaging/standalone/standalone-community/src/main/distribution/text/community/CHANGES.txt
	packaging/standalone/standalone-enterprise/src/main/distribution/text/enterprise/CHANGES.txt

* Fixed bug in server plugin example.
* Fixed problem with bash syntax highlighting.
* Made the refcard entry on maps less confusing.

Speed up consistency checking of non-constraint indexes

relaxed heartbeat to server

Index hints