Ubuntu-16.04 Fixes, 1.0 branch (2018.02.14.)

This includes a few updates to make AnalysisBaseExternals build out of the box once again on Ubuntu-16.04. Making the configuration of that project even more robust than it was.

• The python module installation may create executable script names with slightly different postfixes on different platforms. Using a globbing expression in specifying which scripts need to be massaged to make them relocatable, should cover a lot more platforms than the previous setup did.
• Fixed the suppression of picking up /usr/include for the env_setup.sh file. The previous implementation was way too simplistic.
• Taught AnalysisBaseExternals how to deal with a build system that does have a python 2.7 executable installed on the system, but not the python development library/headers. In which case AnalysisBaseExternals needs to build its own version of Python.

Jenkins Build SUCCESS

Results available at: Jenkins [AE-MERGE-REQUEST #361]

merged

mentioned in commit f08f1d97

mentioned in merge request !238 (merged)