[NUCLEO_L152RE] exporters for gcc_arm and coide
Merge branch 'NUCLEO_L152RE_exporter' of github.com:ohagendorf/mbed into ohagendorf-NUCLEO_L152RE_exporter

Conflicts:
	workspace_tools/build_travis.py
	workspace_tools/export/coide.py
Merge branch 'ohagendorf-NUCLEO_L152RE_exporter'