tweaks for community downloader

a few things that might help the downloader to work better
1 include the ability to filter by tags (author and the meta tags)
2 set the sort order to ignore case (right now you have to check twice for assets due to lower case and UPPER CASE problems)
3 increase the width of the textbox by say 50%
4 convert the list to a checklist with HIDE/ DOWNLOAD checks
long term tweak: scan for and mark existing assets
1 include the ability to filter by tags (author and the meta tags)
2 set the sort order to ignore case (right now you have to check twice for assets due to lower case and UPPER CASE problems)
3 increase the width of the textbox by say 50%
4 convert the list to a checklist with HIDE/ DOWNLOAD checks
long term tweak: scan for and mark existing assets