Merge pull request #55 from tmtrademark/master

Add setting to suppress default fields (title, textarea and submit). Closes #55 /props @tmtrademark
Inline doc
.POT generated from 002e119
Regenerating .po and .mo
Swapped all unnecessary do_shortcode calls with shortcode callback instead

Readme updates
s/_handle_files/_upload_files for consistency
Removing unnecessary preg_match
Renaming context attribute to role
Nightly get_value_for_role method definition
Readme update
Bumping tested up to to 3.6
i18n for 0.5.9
Bumping version to 0.5.9
Removing unneeded var declaration
Bumping version to 0.5.9.1
Bringing category shortcode attr back
Bumping version to 0.5.9.2
Updated Spanish translation. Props
Rafael Calzada
Translation credits
Fixed: Description textarea was nested in its own label.