libnumbertext-1.0.5-bp152.2.13

- Drop libnumbertext-boost.patch and rather rely on new gcc, safer

- Add patch libnumbertext-boost.patch to fix build with boost
  and enable build on older distributions

- Update to 1.0.5:
  * Various fixes in numerical calculations and issues reported on
    libreoffice tracker
- Drop merged libnumbertext-oldgcc.patch

- Add patch to build on old gcc versions:
  * libnumbertext-oldgcc.patch

- Add config.h to installed headers as all headers require it

- Initial commit, needed by libreoffice