Adding tests around the backup tool.

o Tests covering the following:
  o Copying of files from store -> backup
  o Transactions that happen during copy are replayed
    onto the backup store
  o A transaction log contianing the latest transaction
    for lucene & neostore is in the backup
Merge pull request #1928 from mneedham/1.9-main-testing-backup

Adding tests around the backup tool.
Simplify license info.
Merge pull request #2043 from nawroth/2.0-maint

Simplify license info.
Added better error message for offset error.
Report invalid clauses with FOREACH

Before semantic checking the clauses themselves
Merge pull request #2059 from cleishm/foreach-clause-check

Report invalid clauses with FOREACH
Merge remote-tracking branch 'upstream/2.0-maint'
Widens recoverable failure scenarios for schema indexes

Failures while populating indexes include crashes which may leave the
 index files themselves inconsistent. That may lead to the indexes
 being unable to open and recovery on them impossible to proceed. However,
 such a scenario can be recovered by deleting and repopulating the index,
 as it's done for failures so far.
 This commit adds two more exceptions to the list of recovereable errors.
 FileNotFoundException and EOFException thrown when opening a lucene
 index, which may come up if the index is not closed properly, as in
 the case of a VM crash.
Merge pull request #2054 from jakewins/1.9-offseterr

Added better error message for offset error.
Classic StringLogger have option to log debug messages
Merge branch '1.9-maint' into 2.0-merge-in-1.9

Conflicts:
	community/kernel/src/main/java/org/neo4j/kernel/impl/util/StringLogger.java
	community/server/src/main/java/org/neo4j/server/configuration/Configurator.java
	enterprise/backup/src/main/java/org/neo4j/backup/BackupImpl.java
	enterprise/com/src/main/java/org/neo4j/com/ServerUtil.java
	enterprise/ha/src/main/java/org/neo4j/kernel/ha/cluster/DefaultMasterImplSPI.java
Fixed a test shutdown issue
Merge branch '1.9-maint' into 2.0-merge-in-1.9

Conflicts:
	enterprise/backup/src/test/java/org/neo4j/backup/BackupServiceIT.java
Merge pull request #2060 from tinwelint/2.0-merge-in-1.9

Merge 1.9 --> 2.0
Merge branch '2.0-maint' into 2.1-merge-2.0
Merge pull request #2063 from tinwelint/2.1-merge-2.0

2.1 merge 2.0