start on loading my contributions into the list

* flipped sort order so most recent on top
* 'refresh' button fetches last few uploads

Todo:
* thumbnails for my contribs
* don't try to upload already-uploaded ;)
* convert records to completed as we upload
* auto-refresh
* detail view for my contribs
separate localFile & thumbnailFile deletions
Merge pull request #6 from dz1111/master

Adjusted "return" keys functionality in Settings view
fetch thumbnails in background after refresh

fixed 'unique' thumbnail filenames to include a random number, not just seconds
Fetch only the first incomplete record when trying to upload
save file records as complete on completion!
clean up title format a bit
"Commons" -> "My Uploads"
fetch remote image thumbs when complete
Merge branch 'contris'
Show spinner while loading remote images on detail view
Adjust size of titles in my uploads view

Now takes up more space to make room on landscape, iPad
add Daniel Zhang to credits (submitted a patch for keyboard nav fix)
update README
Splashscreen images for iPhone, iPad; icons for iPad
Initial support for importing files from other apps

PNG, JPEG, SVG, TIFF, PDF
Can upload a PDF exported from OmniGraffle!
Can upload an SVG exported from TouchDraw!
Can't thumbnail PDFs or SVGs yet.
Add initial file icon support for SVG & PDF

PDF can be read by CoreGraphics but doesn't go conveniently into a UIImage, needs work.
SVG can be read by WebKit but doesn't go conveniently into a UIImage, needs work.
Icons are low-res and grabbed from MediaWiki, they should be redrawn at high-res. Or replaced with thumbnails.
Merge branch 'filetypes': add support for sharing files from other apps
temp disable launch URL processing, since we seem to get asked to process it a second time
remove unused import; removed redundant app definition