Configuration updated
Documentation updated
Required version updated
Cache version and update commands
Cache dir control removed

Browscap already throw an exception if the cache dir does not exist
Unused statement removed
Options added

local_file, cache_filname, ini_filename and lowercase options added
added silent property to options
Default values updated

remote_ini_url and remote_ver_url updated to point to
http://browscap.org/ (see
https://github.com/GaretJax/phpbrowscap/blob/2.0/CHANGELOG.md)