Updated php version from 5.5 to 5.4

Temporary test for travis php versioning
Travis to run php 5.4 & 5.5
Update README.md
Update README.md
Update README.md
Updated lock file
Update README.md
Update README.md
Updated README with example output
Updated badges for different branches
Updated badges
Removed branch specific badge
Merged 'master' into branch 'php5.4'

Resolved ‘README’ conflicts
Merge pull request #6 from eddiejaoude/php5.4

Php5.4 functionality & unit testing in travis ci for version `php5.5` & `php5.4`