Skipped the git update part of nightly + fixes some minor ctest problems

UPDATED C++11 compliance CMake syntax

See merge request !5

FIXED additional test for an action not yet existing is ok if it is current target

See merge request !9

It is ok to create an additional action test for an action that does not already exist
(i.e., shared lib cannot be found), if and only if the action is a target of the
currently build multi-CEP.
In this case it is the shared lib will be created during build and be available
at test time.

Easier CEP testing

See merge request !8

Wiki documentation also updated

Merge branch 'bug/c++11CMakeGoodForm' of gricad-gitlab.univ-grenoble-alpes.fr:haberbuj/CamiTK into bug/c++11CMakeGoodForm

Feature/extra testaction

See merge request !6

Required to include additional auto test for external CEP

use case: a CEP provides a new component extension and wants to check
its integration in previously defined actions. It is now possible to add
additional autotest using the testfiles provided by this new component
extension.

Bug/restrict testaction

See merge request !4

For uniformisation... and future addition

Feature/consolidate testing

See merge request !3

and remove deprecated DEFAULT option

Does not seem to speed up the config time though

(aka a tentative to accelerate config performance)

Add more (pertinent) test everytime it is possible.
Fixing bugs as they are unveiled by the new tests