StoreRecoverer uses filesystemabstraction to check file existance.

Improved recovery check for server

2.1 upgrade notes

Restore messages.log in server.

Documentation fixes for 2.1.

Support for multiple pattern predicates in or

Remove errant definition of additional artifact for UDC integration test...

* Added UNWIND to refcard.
* Better links to other resources.
* Typos.
* Added refcard the docs build.

Merged commit 90794260

o Ands and Ors ASTNodes uses Sets rather than Lists

Fixed bug that caused RWLock not to free up entries in txLockElementMap.

The mark flag is used to guard against creating multiple RWLocks for the same resource and has nothing to do with TxLockElement entries.

TxLockElement creation and removal is still safe since it is synchronized on the RWLock.

Conflicts:
	community/kernel/src/main/java/org/neo4j/kernel/impl/transaction/RWLock.java

pprint: cleanup, docgen caching, logical plans

2.0 merge

Conflicts:
	community/cypher/cypher-compiler-2.0/src/main/scala/org/neo4j/cypher/internal/compiler/v2_0/commands/Predicate.scala
	community/cypher/cypher/CHANGES.txt
	community/kernel/src/main/java/org/neo4j/kernel/impl/core/NodeImpl.java
	community/kernel/src/main/java/org/neo4j/kernel/impl/core/RelationshipIterator.java
	community/kernel/src/test/java/org/neo4j/kernel/impl/core/NodeImplTest.java

Fixes problem where predicates are evaluated wrongly in NOT

Small refactoring of PlanContext and surrounding classes

Simplify SimpleTokenResolver

Image fixes

Add PDF manual back, fix image sizes, upgrade CodeMirror.