Various additions, changes and typos fixed
More translations
Use curl/tar/makepkg instead of yaourt for Arch Linux.
Only build AUR packages if they're not installed.
Windows does not guarantee atomic overriding of files with rename. Deleting original before replacing.
Implemented Trash on Composer support, needs updated to new API JS command #761
Commented out Favicon instance
Fixed duplicating icon-eye issue in #757
Added 'Show' vs. 'Find' encryption key state & int. for Contact dropdown
Added whitespace from last commit
Don't display 'None' for unset fields in the add route dialog
Load plugin code files by order of appearance.

- old behaviour: file name length
- added test for plugin discovery
Made keybinding 'S' select a 'target' in a search view... seems buggy, but might just be my keyboard about to break
Added update UI to Select Target action
Added some generated styles to CSS
Refactored modal Tag picker quite a bit
Moved & imrpoved Modal tag picker JS logic & rendering
Added Encrypted icons to search items for encrypted results
Added 'Thread Notification' styles
Added 'Message moved to new thread' JS + UI feedback