Please merge with GCC6 sumbission, for build results look in deve:gcc

- Add rx and epiphany targets

- Add rx and epiphany targets

- Drop newlib-rpmlintrc

- Apply epiphany-fixes.diff not only to cross builds (.spec.in) but
also in newlib.spec, to please factory-auto checker (sr#395228)

- Prepare rl78 target
- Update to 2.4.0
* Info files are no longer built
* Package all license and read-me files
- Clean up makeinfo dependency
- Drop cross .spec files in preparation for Factory submission

- Update to 2.2.0.20150623
- Add cross-rx-newlib-devel package
- Revert installing files to sysroot

- Switch cross template to gcc5

- Install target files to sysroot

- Enable native builds

- epiphany-fixes.diff: Drop executable permissions of
libepiphany.a and crt0.o