Add PHP 5.5 to Travis config
Update CA Root Certificates (Fix #3)
Adds tests for HttpFactory and Http class.
Fix failing FactoryTest::testGetHttpTrasports by sorting trasports name.
Corrects type of assertion used in tests.
Merge pull request #4 from Achal-Aggarwal/unit-tests

Adds some tests.
Code style from last PR merge
Merge branch 'master' into patch_httpTransports_order

Conflicts:
	src/HttpFactory.php