Merge pull request #20 from liverbool/master

[PR] Add support GuzzleAdapter and Allow customize exception.
Added liverbool to the contributors list
minor CS modifications
Added snapshot method to the documentation
Updated the change logs
Travis and composer improvements
Merge pull request #21 from GrahamCampbell/travis

Travis And Composer Improvements
Merge remote-tracking branch 'upstream/master'
Removed whitespace
Merge pull request #22 from GrahamCampbell/cs

cs fix
Added a link to Laraval wrapper for the library.
Fixed a typo
Added a .gitattributes
Removed "protip"
Use a better version constraint in the readme
Fixed a typo
Merge branch 'GrahamCampbell-typo'
Merge branch 'gitstuff' of https://github.com/GrahamCampbell/DigitalOceanV2 into GrahamCampbell-gitstuff
Merge branch 'GrahamCampbell-gitstuff'
Merge branch 'patch-1' of https://github.com/GrahamCampbell/DigitalOceanV2 into GrahamCampbell-patch-1