User::dnt() function added for checking of "Do not track" state.
$block variable with block data is available inside block file.
Added Config::base_url() method.
During installing of module or plugin from package it will be unpacked on all physical mirrors.
Some small fixes.

System version 0.168
modules:
Cron 0.001
Blogs 0.019
HybridAuth 2.1.0-cs7
Static_pages version 0.016
plugins:
TinyMCE 3.5.6-cs1