DeepSea cleanup:
* removed vector.js; unused + the functionality is provided by deepsea.js
* removed .project; unused & useless as far as I can see
* spaces -> tabs
* added i18n file and moved some hard-coded messages there
* HTML validation fixes (this still isn't fully valid, because of some missing <ul>s -- adding <ul>s to the places where the validator wants 'em breaks the intended look & feel...need to investigate & properly address this issue)
* tweaked skin credits
* removed the DeepSeaTemplate class from autoloader, as this apparently breaks the loading of this skin's skin-specific i18n messages (!)
* gave $bmProject a sane default value in DeepSea.php if not set already (this is a register_globals "vulnerability", but if you're honestly running PHP with register_globals on...I feel sorry for you)
* fixed some (but not all) duplicate IDs
** searchform --> searchform-mobile
** simpleSearch --> simpleSearch-mobile
** where is that damn "search-mobile" thingy supposed to be shown anyway? I can't see it on my local test wiki but it's in the HTML and the validator complains about it...
* cleaned up the JS file -- JSHint is now happy with it