move it out of alpha

Merge branch 'master' of github.com:developmentseed/node-sqlite3

Conflicts:
	test/fts-content.test.js
	test/scheduling.test.js

bump to version v2.1.5

bump to version v2.1.4

bump to version v2.1.3

bump to version v2.1.1

clarify version numbers

bump to version 2.0.18

bump to version v2.0.17

bump to version v2.0.16