docs(logo): add the new dgeni logo
docs(README_fr_FR): reference new computing-ids and ids-computed pseudo-processors

Closes #102
docs(assets/README): fix path to logo image

Github markdown doesn't like svg
docs(README): add logo to README
chore(tests): move tests into lib folder

By placing tests next to their subjects we make the paths between test
and source much smaller. This also makes it easier to move code around
since the tests will come too.

This is related to https://github.com/angular/dgeni/issues/103 since
one reason for having a symlink was to make relative paths between tests
and source simpler.