MOTECH-1307 Update com.mysql.jdbc to a version later than 5.1.18

This version includes the bugfix for sql connector in OPTION

Change-Id: Ib1eccc45d69e507c50b1a0c0d24853684ff96d10
Merge branch 'master' of github.com:motech/external-osgi-bundles

Conflicts:
	mysql/pom.xml

Change-Id: I53ddab8417cc28689801e90e5832a727bbcbd406