Merge pull request #133 from ivanlanin/develop

New unit test for ODText\Content and some test fixes
Merge pull request #134 from PHPOffice/develop

Version 0.8.0
ADDED : Docs
Version number: 0.7.0 > 0.8.0
Merge pull request #135 from ivanlanin/master

Version number: 0.7.0 > 0.8.0
Version number: 0.7.0 > 0.8.0
Merge branch 'master' of github.com:PHPOffice/PHPWord into develop
Refactored PHPWord_Exception to namespaces
Added PHP 5.6 to travis-ci and removed namespace checking before we make the change to namespaces