partial progress on a separate friends folder
ignore REVISION
add simple script to select/display rcloud.conf versions

scripts/selconf takes a config name, or prints the last selected
assumes there are other possible configurations conf/rcloud.conf.*
Merge branch 'develop' into feature/friends-folder
remove useless log
get friends folder working

not just sorting of all notebooks
closes #135 (again)
Merge branch 'feature/friends-folder' into develop