[edit] .gitignore IDE files (PhpStorm)
[fix] issue #45 - make the group_urlname configurable

- abstracted the AbstractService::__constructor()
- abstracted common methods: AbstractService::getApi(), AbstractService::getCache()
[fix] issue #45 - make the group_urlname configurable

- abstracted the AbstractService::__constructor()
- abstracted common methods: AbstractService::getApi(), AbstractService::getCache()
- no changes to .gitignore

Conflicts: src/AmsterdamPHP/Bundle/MeetupBundle/Service/EventService.php
Merge pull request #75 from madmanmax/group_urlname_configurable

Group urlname configurable [issue #45]