espeakedit-1.48.03-bp150.2.6

- FTBFS with GCC-7: espeakedit-gcc7-destbufferoverflow.patch
  * in dictionary.cpp, it defines an array of 80 chars.
    fill the 1st with zero and strncpy the following 79
    chars with a max size of 80 chars. our fix re-defines
    the max size to 79 chars.

- Use wxWidgets 3.
- add patch: espeakedit-wx3.diff

- update version 1.48.03
- add patch: espeakedit-1.48.03-next-line.patch
  * lack of next line mark in Makefile
- add patch: espeakedit-1.48.03-gcc6.patch
  * fix boo#985354
  * fix narrowing conversion from int to char inside {}
- drop patch: makefile_rpmoptflags_wxversion.patch, upstreamed

- Fix ability to use wxcontainer instead of stl variant for WxWidgets

- Version 1.46.02