use dev packages
ignore the composer.lock
removed unnecessary use statements
Fetched core SE
Merge pull request #21 from symfony-cmf/update

Fetched core SE
add php 5.6
prepare 1.2 stable
tighten dependencies
validate we have the right type of object manager in the fixtures
make it easier to switch to another DB than sqlite
always enable the demo bundle
also enable demo bundle routing in prod
Merge pull request #18 from symfony-cmf/1.2

1.2.0