mget with empty list

fix mget with an empty id list.
updated deps

Added table default limit configuration

Added table default limit configuration

missing options `customQueryFilter`

Added _customQueryFilter option to teh methods .get, .mget, .has, .del and ._update

String-ID with numbers

• optimized string id create to also use numbers after the first char.
• updated dependencies ( lodash 4.x )
• updated dev environment
• fixed coffee lint errors
• removed code docs
• optimized code publish to git and npm
• removed old tests

(in/de)crement fix

• Fixed to check incrementOnSave during (in/de)crement call
• updated dependencies