piwik 7.x-1.0

* Remove outdated public folder checks.
* Minor text change
* Code style change
* No need for querystring in #attached javascript
* Returned URLs are wrong
* Use file_unmanaged_delete in clear_js_cache()
* Use drupal_hash_base64() for md5().
* User settings are now in $account->data['piwik']['custom']
* Removed dash from module name
* #946550: Revert to drupal_add_js()
* #951016: Reference error in php5.3
* D7 upgrade: rmdir() -> drupal_rmdir()
* Translations have been moved to l.d.o
* files[] is no longer required, except for files that define classes.
* #1014526: Split loading of piwik.js and tracker into two script tags.
* Add a title to every field for better accessibility.