Prevent GET_LOCK Cache changing the Query each timestamp.
Time as float making instant request on GET_LOCK
added empostgresql
Fix issue #5 by using a deterministic hash function to generate a lock id for Postgres.
Merge remote-tracking branch 'origin/master' into get_lock_cache_improve

Conflicts:
	lib/with_advisory_lock/mysql.rb
Merge remote-tracking branch 'lestercsp/master' into omg_everyones_been_helping_and_ive_just_been_ignoring_them
Merge remote-tracking branch 'jturkel/master' into omg_everyones_been_helping_and_ive_just_been_ignoring_them
preparing v0.0.8
rearranged the FAQ
fix markdown
readme edits