Major redesign of rendering pipeline that separates pages saved with MCE from pages saved with the plaintext editor (full description in long commit message) - Pages are now stored with an extra metadata field called page_format which is "wikitext" or "xhtml" - New $flags parameter + RENDER_* constants added that control RenderMan::render() behavior - Several other changes: * Added a sprite API for Javascript and made editor use sprites when possible * Removed a number of config options from the default install schema, replaced with second parameter to getConfig() calls * MessageBox in editor mostly replaced with miniPrompt * A few bugfixes related to password changes (registration didn't even work) * Rewrote the bitfield compression algorithm used to serialize allowed MIME types * Fixed some typos in language files and strings * Fixed a Text_Wiki bug in Heading parser

#src_list, #over_list, #out_list {width:280px;}
.mceActionPanel {margin-top:7px;}
.alignPreview {border:1px solid #000; width:140px; height:140px; overflow:hidden; padding:5px;}
.checkbox {border:0;}
.panel_wrapper div.current {height:305px;}
#prev {margin:0; border:1px solid #000; width:428px; height:150px; overflow:auto;}
#align, #classlist {width:150px;}
#width, #height {vertical-align:middle; width:50px; text-align:center;}
#vspace, #hspace, #border {vertical-align:middle; width:30px; text-align:center;}
#class_list {width:180px;}
input {width: 280px;}
#constrain, #onmousemovecheck {width:auto;}
#id, #dir, #lang, #usemap, #longdesc {width:200px;}