* Fixed #141: improved styling for issue edit form. * Fixed #142: TOC assumes `left` by default, also added new variables to control how it looks. * Fixed #143: `$main-menu-bg-hover` is now being used. * Resolved #144: added `$main-menu-bg-active` variable. * Resolved #145: added `$table-list-header-bg` variable. * Fixed #147: corrected forum edit attached files icon. * Fixed #153: improved styling for `label.block`.