F8 custom configuration file path.

When you create a file comments via plugin sublime, it is impossible to
customize the configuration options. Equally it uncomfortable to have a
configuration file for each sheet folder.
A more semantical message to config file search.

SmartComments seeks first the configuration file and then read this.
Merge pull request #13 from darielnoel/F8-custom-configuration-file-path

F8 custom configuration file path