Fixes a bug where multi-line messages were truncated incorrectly on 64-bit.
Merge pull request #23 from amyworrall/fix-message-height

Multi-line message height calculation
Updated drawing functions for ios 7
Fixed issue #9
updated read me and pod spec
Merge branch 'master' of https://github.com/terryworona/TWMessageBarManager
Updated Orientation code to work with original master modifications