Veronika Vodeb / ctools

…implementation in csiactdata, csiactobs, csfindobs to look for the NONE value to decide which path to choose for @datapath@.

…-file due to user interaction. Now the user input for <datapath>, if existing, is used before the VHEFITS path is used. If none of them is existing the user will be queried (like before).

# Conflicts:
#	test/test_csiactobs.py

… cases, restructured csiactobs to avoid code duplication and added csobsdef::obs() function to retrieve observation container

The new GApplication logger support function take the chattiness level as the first argument.

…oid code duplication in cscripts.