Merge pull request #2 from Ubiquiti-TeleFi/master

Lots of changes
made the helper module accessible
meh. don't need this
correct rebar deps
ability to write data only if the entry doesn't exist...
remove_data supports removal of multiple keys
delete multiple keys (also patches delete data for unicode)
Merge pull request #1 from dieswaytoofast/master

Patches and updates 
use local repos
fixed example success typing
time to live