remove redundant "story" variable in comment templates
add note about compatibility with ruby 2.0.0 and 2.1.0 in README
allow users to delete their own accounts

not much can actually be deleted, but it can be put into a deleted
state
Merge pull request #99 from srgpqt/ruby2

README: add note about compatibility with ruby 2.0.0 and 2.1.0
don't interact with inactive users
apply comment_text class to private messages to get nicer formatting
fix Tag.accessible_to to allow moderators to use privileged tags
rename .rbenv-version file
Merge pull request #103 from ZubKonst/rename_rbenv-version

rename .rbenv-version to .ruby-version
Merge pull request #98 from srgpqt/master

remove redundant "story" variable in comment templates
add postgresql support
optimize traffic counter queries
possible fix for postgresql+sphinx indexing issue?
Merge pull request #87 from srgpqt/postgresql

add postgresql support for sphinx and Keystore
also escape ~ char before sending to sphinx
fix User#recent_threads for postgresql
when highlighting one comment, scroll to it

though i wonder with highlighting comments and now scrolling to
them, why we bother excluding all other threads.  we aren't
pagingating threads anyway.
Test-user receives message after registering banned username
Create user model tests for is_active, unban, is_banned and is_new
Merge pull request #108 from abutler3/master

add tests for recent changes to User model