Thread-safety: Don't share request object between reqeusts
Added Kindle Fire HD support.
Adding Firefox Android Tablet to modern browsers. Adding Blackberry PlayBook as a valid tablet device
Add support for Windows Surface tablet
Update README.md

Man, I love this gem. Still so useful. Thanks for keeping it maintained.

I thought adding browser.version would be helpful in the README as a quick reference.
Updated gemfile.
Merge pull request #50 from chrisyour/patch-1

Update README.md
Merge pull request #49 from ajjahn/master

Add support for Windows Surface tablet
Merge remote-tracking branch 'ronald05arias/master'

Conflicts:
	lib/browser/methods/devices.rb
Merge remote-tracking branch 'derekclee/kindle-fire-support'

Conflicts:
	test/browser_test.rb
Merge remote-tracking branch 'nixme/threadsafe-middleware'
Bump up version.
Added support for bots detection.
Add methods for detecting console browsers.

Adds the following methods:

Browser#nintendo? # Nintendo Wii or WiiU
Browser#playstation? # PlayStation 3 or 4
Browser#xbox? # Xbox 360 or One
Browser#console? # Any of the above
Use HTTP 302 for redirect as IE permanently caches HTTP 301
Detect IE11.
Detected Windows 8.1.
Merge commit 'd1a4b6fb584e7826a2cb58dc5fbd5b7b468e1939'
Apply the important tidbits from thread-safety. Closes #68 and #69.
Enumerable#any? is easier to read.