fixed memory usage calculation
been asked to commit
removed model generated files
generate models with relations discovery, mapper and query builder added
CoSQL Update only changed fields, fetch one field update many
Merge branch 'cosql-dev' into cosql

Conflicts:
	library/models/blog_post.php
	library/models/cms_component.php
	library/models/cms_componenttype.php
	library/models/cms_page.php
	library/models/cms_pagecomponent.php
	library/models/cms_route.php
	library/models/cms_tag.php
	library/models/customer.php
	library/models/customer_api.php
	library/models/customer_api_usage.php
	library/models/customer_balance.php
	library/models/customer_group.php
	library/models/customer_limit.php
	library/models/customer_profile.php
	library/models/customer_transaction_status.php
	library/models/customer_transaction_status_history.php
	library/models/customer_transaction_type.php
	library/models/customer_transactions.php
	library/models/customer_transactions_history.php
	library/models/filestore_file.php
	library/models/filestore_image.php
	library/models/filestore_type.php
	library/models/filestore_volume.php
	library/models/model.php
clean up generated files
Merge branch 'cosql-dev' into cosql
clean up
CoSQL CRUD operations finished, not all tested though
clean up
tests
update README
tests
cleaning up