fix add/remove tags in pile_action_{,un}select

Jquery try to be smart with data coming from html5 data-* attributes [http://api.jquery.com/data/#data-html5] and return a numeric when mid looks like an int. This cause findWhere to not find metadata, ignoring add tags on select and crashing with metadata undefined in unselect.
Exclude tests from install.
fix for #951 (trivial)
Fix Issue #954
Merge branch 'ezannelli-master'
Replace escape sequence for colon with colon in values from colon-separated gpg result
apt-get update before apt-get install gnupg
Reinserted newline at end of file
Update Dockerfile to use the new syntax
Made Profile tooltips show when editing too
Added a couple special Search terms to query box 'keys:' and 'tags:'
Fixed Tags font CSS
Merge branch 'master' of https://github.com/pagekite/Mailpile
Added fedora-dev for fedora systems
Splitting requirements for users from requirements for developers.
Adding keyboard shortcuts for next and previous buttons
Merge branch 'realitygaps-master'
Fixing bug when on first page
Forgot to fix the next button on final search page
Merge branch 'master' of github.com:realitygaps/Mailpile into realitygaps-master