removed white space
not showing children if showing is not set
fixed a bug with not set default title
replaced deprecated js_escape with esc_js
defining defaults yielding php notices
added content to the available tags
fixed a couple of php notices of uninitialised variables
showing view downloads tab in tinymce only if there are downloads
fixed another bug of uninitialised var
checking if the download shortcode has to include the closing tag, based on the format
removed some unneeded tinymce interaction
fixed a typo
converted tabs to spaces
Merge pull request #33 from avioli/dev

Added {content} tag and fixed several php notices