added Twilio SMS notification
Merge pull request #181 from DevinDawson/issue-93

Issue-93 Add subscription when creating check (partial REST API only)
small update to TwilioNotificationService to include Twilio error codes
in Exceptions when possible, added test
added Twilio docs to README
switched to canned ClientDriver test from Twilio SDK
Merge pull request #183 from sigpwned/master

added Twilio SMS notification
Re-order Twilio to bottom (alphabetical) of readme
Update readme to point to 1.1.0
Added build w/o tests and alt. port instructions.
Amend index to include live field
Merge branch 'master' of github.com:scobal/seyren
Added support for optional fields 'from' and 'until' to a check.
If either field is set, its value is used when building the graph; otherwise, the previous defaults (-11minutes, -1minutes) are used.
Linkify check descriptions
Update README.md
Noop commit in hopes of forcing a CI build on the pull request.
Another no-op commit to force a CI build.
Specify Mongo version once
Tidy up some warnings
Prevent state and last updated date update from overwriting actual changes to the rest of the check
Update Mongo driver