Ensure duration_in_seconds has an integer value
Merge pull request #79 from pvdb/round_max_age_to_integer_value

Ensure duration_in_seconds - and hence max-age - has an integer value
Fix the bug that TryStatic returns 405 "Method Not Allowed" Error

To fix #85
Be explicit that this is MIT license

Makes it easier for people to quickly see what they are dealing with
Add licenses to gemspec

This should be enough to have it show up on rubygems.org
Merge pull request #90 from coreyhaines/patch-1

Be explicit that this is MIT license
Merge pull request #91 from coreyhaines/patch-2

Add licenses to gemspec
Fix CVE-2014-4671
Merge pull request #93 from justintv/master

Fix CVE-2014-4671
Merge pull request #86 from bachue/patch-1

Fix the bug that TryStatic returns 405 "Method Not Allowed" Error
(Sorry for jumping - I said I'll wait with the pull requests, but I decided I really want this.)
Added Gitter badge
Merge pull request #95 from gitter-badger/gitter-badge

Add a Gitter chat badge to README.md