gromit-mpx-1.4-bp155.2.13

- bump gtk version to match cmake

- Correct license is GPL-2.0-only

- a better solution for the config path problem:
  pass -DCMAKE_INSTALL_SYSCONFDIR=%{_sysconfdir} instead of moving
  the file after install.

- add obsoletes/provides for gromit

- Update to 1.4
  https://github.com/bk138/gromit-mpx/releases/tag/1.4

- initial package