mongo_db_data_storage improvments + mongo exceptions management
removing saving files
adding MongoClient class test for mongo connection options
adding  parameter in get_connection function
create function returns mongoId now
add and _save functions throw an exception if we try to create a document with empty forced uid
add function returns mongoId now
add function uses Mongocollection insert function now
exception management improvment
mongodb_data_storage phpunit tests
introducing cookie object, moved request::are_allowed to cookie::are_accepted
introducing session object as mysfw's module
session module phpunit test class
refactoring cookie module
introduced exceptions in cookie module
introduced exceptions in session module
 fixes after review
Merge pull request #40 from lutholea/feat/vb/twitter_hash_tag

 fixes after review
Merge pull request #38 from garmr/features/rgi/cookie

introducing cookie object
Merge pull request #39 from garmr/features/rgi/session

introducing session object as mysfw's module