basic promise implementation
Merge branch 'master' of https://github.com/PhilWaldmann/openrecord

Conflicts:
	README.md
	test/sql/mysql/run_shared-tests.js
	test/sql/postgres/run_shared-tests.js
	test/sql/sqlite3/runs_shared-tests.js
Merge branch 'master' of https://github.com/PhilWaldmann/openrecord

Conflicts:
	README.md
	test/sql/mysql/run_shared-tests.js
	test/sql/postgres/run_shared-tests.js
	test/sql/sqlite3/runs_shared-tests.js