Add license to gemspec

Fixes issue #26
added note about redis minimum version
Merge pull request #27 from alexchee/master

Updated README about minimum version for redis
Update changelog, version 2.2.1
add release to changelog
README.md: add gem badge; re-arrange stuff
Minor copy tweaks
Allow limit option to be a proc.

This allows you to do stuff like:
`req.env["USER"] == "god" ? 1000 : 1`
Merge pull request #30 from lunks/allow-limit-to-be-a-proc

Allow limit option to be a proc.
version 2.3.0, update changelog, copy tweaks
Drop test support for ruby 1.9.2

1.9.2 isn't supported by rails 4, and is difficult to test with travis
ci.

Attn @zmillman: I'd welcome further patches to better test ruby 1.9.2
support without compromising testing on 1.9.3 & 2.0.

See also: #21
[travisci] Add tests for activesupport 3.2 and 4.0
[travisci] Fix gemspec path in gemfiles
Add mailing list to readme
README: add link to mailing list archives
Allow2Ban

An alternate to fail2ban that allows clients until they hit the
thresholds, then blocks them.  Think of it like a throttle where you can
block for more than one period.
fix edge case, if maxretry is 1, let them get 1 request in
Merge pull request #33 from teslamotors/allow2ban

Allow2Ban
Update CHANGELOG.md
Update README.md

docs typo