Update distribution info for docs

New server hosting the docs, new path on disk.
Unused import.
Adds a BreakableFileSystemAbstraction and uses it for TestDirectMappedLogBuffer.

Adds BreakableFileSystemAbstraction which is a FileSystemAbstraction that can
 break in highly customized and interesting ways.
Adds a test in TestDirectMappedLogBuffer which shows how things can break
 when DMLB is reused after an exception in writeOut(). This test rightfully
 breaks and is Ignored.
Attempting to fix upload of docs.
Improve semantic errors for allShortestPaths
Fix for incorrect behavior of MERGE

o Fix for incorrect handling of TxState and NO_SUCH_NODE in unique index lookups
o Fix for not using unique indexes in GDB.findNodesByLabelAndProperty
Licenses for 3rd-party artifacts packaged with neo4j-browser.
Merge pull request #1264 from boggle/index-bug

Fix for incorrect behavior of MERGE
Bump dependency on neo4j-browser.
Tagging for version 2.0.0-M06
Back to development version.
Bump dependency on neo4j-browser.
Tagging for version 2.0.0-M06
Removes shutdown hook during normal stop, preventing leaks
Merge pull request #1269 from digitalstain/remove-server-hook

Remove server hook
Back to development version.
Merge remote-tracking branch 'upstream/1.9-maint'
Add semantic checking of merge actions
Add check that var length rels are not used in updates
Merge pull request #1277 from cleishm/semantic_checks

Semantic checks