updating Meta Tag Generator and Tests

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
Update:

Adding Event Driven Meta in the System.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
Update:

MetaData-gen:
Added more tests dealing with events and improved existing events

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
Update:

PHPUnit Based Tests, copied from codeception dir.

currently maintaining two branches of tests to have distinct phpunit
and codeception tests.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
Merge branch 'develop'

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>