Improvements to search engine and social network detection

Fix plugin update might be shown several times

fixed notice

Show plugin updates for disabled plugins

Show an error message if installing a plugin fails

New API to create custom SMS providers in Piwik plugins

Console generator: Do not automatically convert first character to uppercase

[automatic translation update] Updated 636 strings in 12 languages (ko, nb, cs, de, el, fr, it, pt-br, ru, sk, tr, lt)

Fix strpos() expects parameter 1 to be string

Fix location.domain is not set when used in xulrunner

Do not use DI for Request Processors

Do not automatically convert first character to uppercase as a plugin does not have to start with uppercase

Fix System tests by not using 'date=today' in tests

Merging menuitems hover graphic appearance to focused keytabs

Request API the proper way so plugins can listen to this event and change the list of users

This hopefully fixes the build after https://github.com/piwik/plugin-AnonymousPiwikUsageMeasurement/pull/24

we need tests to have deterministic 'idsubdatatable'