Allow locking to be disabled via config or on the fly. Fixes issue #27
Add sessionStats.php script.
Add more patterns to bots-detection regular expression.
Give shorter session lifetime to sessions on first write.
Cleanup unweildy config.
Track latest Credis_Client.
Fix migrateSession regression. Fixes #32
add lz4 compression/decompression
Merge pull request #33 from craigcarnell/feature/lz4_compression

add lz4 compression/decompression
Adding lz4 compression library to README
Merge pull request #34 from copious/chore/lz4-in-readme

Adding lz4 compression library to README
Allow lz4 compression to be specified as 'lz4' instead of 'l4z' to avoid confusion.
Update sessionStats.php to allow group by any key.
Allow choice of sort parameter for session stats.
Apply firt write lifetime to second write, multiplied by two.
Merge remote-tracking branch 'upstream/master'

Chase upstream