bwm-ng-0.6.1-bp151.2.11

- add patch to fix build with GCC7 in Factory, requiring the use of
  "static inline" instead of "inline":
  bwm-ng-fix_gcc7_inline.patch

- Update to 0.6.1, please see
  /usr/share/doc/packages/bwm-ng/ChangeLog and NEWS
- Change Desktop entry file
- Add icons
- Add default header
- Change URL
- Change Source0 to use Web URL
- license update: GPL-2.0+, use default
- Add BuildRequires for hicolor-icon-theme
- Remove BuildRequires for gcc make
- Use default %make_install
- Change Documentation

- initial version (0.6)