Added createInstance and newSession, cleaned up things related to other routers.
Added dbshard.h
Fixed typo in documentation
Merge branch 'MAX-324' of https://github.com/mariadb-corporation/MaxScale into MAX-324

Conflicts:
	server/modules/include/dbshard.h
	server/modules/routing/dbshard/dbshard.c
Fix to #603, http://bugs.skysql.com/show_bug.cgi?id=603
Completed syntax and examples. Added filter descriptions.
Merge branch 'MAX-324' of https://github.com/mariadb-corporation/MaxScale into MAX-324
Merge branch 'release-1.0GA' into MAX-324
Fixed some of compiler errors