[INFO] main branch has been updated to 4.5.0-SNAPSHOT

[Jean-Baptiste Onofré]

Hi guys,

now that we released Karaf OSGi runtime 4.4.4 and 4.3.10:
- I updated main branch to use 4.5.0-SNAPSHOT branch
- I created karaf-4.4.x branch

As a reminder, karaf-4.3.x will move "not active" when the first 4.5.0
version will be released.

Regards
JB