factor out 'move after install' code from impi easyblock to IntelBase, and also use it for itac
remove hardcoding of Tcl code in make_module_extra in Intel easyblocks, loosen up itac sanity check
fix guesses issue
enable allow_abs where necessary
Merge pull request #487 from boegel/intel_move_after_install

factor out 'move after install' code from impi easyblock to IntelBase, and also use it for itac + cleanup