Correction to be able to use ctk Locations
Two bugs in this class:
1/ confusion between service variables installLocation and instanceLocation,
2/ locations are not closed correctly that gives a segfault when the application closes.
Important: to have the functionality, there is also a correction in ctk to apply (cf. https://github.com/commontk/CTK/pull/719). The second bug can be seen only after applying the ctk correction, without it InternalPlatform cannot find locations at all (all pointers are null).