Added Travis-CI
Merge pull request #467 from TTTAttributedLabel/travis-ci

Added Travis-CI
[Podspec] Updated to new repo location. Bump 1.12.0
[Tests] Added test target with simple snapshot tests
Merge pull request #468 from TTTAttributedLabel/tests

[Tests] Added test target with simple snapshot tests
[Tests] Added vertical alignment test
[Tests] Added a link detection test
[Tests] minor cleanup
[Tests] Added link and phone press delegate tests, text inset test
[Tests] Added label shadow radius test
README update
[Tests] Additional tests for TTTAttributedLabelDelegate methods
[Tests] Added a test for complex attributed string rendering
[Tests] Better code reuse across TTTAttributedLabelDelegate tests
[README] Demo setup description
[Tests] Added empty string sizing test, single line sizing test

Also updated sizing to return zero for empty attributed strings
[Tests] Add a test for inheriting attributes from label properties
[Tests] additional assertion for label inheritance test
fix bug: link background paints wrong position
Additional snapshot tests for #470