added new menu voice in WP backend "Wordless preferences"
preferences_content() admin function
$wordless_preferences array
Wordless preferences form admin page
store plugin options in WP DB
get options from WP DB for config/initializers/wordless_preferences
update instructions
update instructions for WP official plugin
update version to 0.3
Merge pull request #128 from mukkoo/master

Wordless preferences in backend