base: assets 3.0

* Removes bower.json as it is currently generated by inveniomanage.

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
base: assets 3.0

* Adapts less import paths to the new directory structure.

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
base: licence headers for less templates

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>