allow lens-4.2 in test suite as well

(cherry picked from commit 54ca31b5154dbdccc974a498ea9b53437e7ae61f)
allow lib 1.2, svg 1.1
allow cabal 1.20
Update CHANGES.md
Allow lens-4.2, mtl-2.2
bump version to 0.2.2.9
CHANGES for 0.2.2.9