Merge pull request #5 from mdx-dev/feature/cleanup

General code cleanup.
adding geoToString, fieldsToString, and the first pass of filterToString methods and tests
Merge branch 'master' into charizard_query_building

Conflicts:
	extensions/data/QueryStringBuilder.php
Merge pull request #7 from mdx-dev/charizard_query_building

adding geoToString, fieldsToString, and the first pass of filterToString...
Merge remote-tracking branch 'origin/master' into feature/cleanup

Conflicts:
	extensions/data/QueryBuilder.php
	extensions/data/QueryStringBuilder.php