change default log config
include all sub modules
support package level static data
Detect and change storage dir intelligently:

   * If CWD has "conf" and "save", use CWD.
   * Else, use "~/.snsapi"
more of v0.6.0
fix typo: classifier
fix the method routing logic of SNSPocket:

   * Previously, if 'channel' arg is given and it is expired,
   pocket will operate on all other channels.
   * Besides, the existence of 'channel' in pocket is not checked.