- Cleanups spec file with spec-cleaner

- Implement shlib packaging guidelines. Drop explicit Requires,
as the python/ruby/etc. subpackages require the libraries by
SONAME already.
- Throw out repeated packaging of documentation
- RPM group classification corrections

- Update to version 3.5.0
* Voronoi API (#627)
* PHP: Geometry->normalize method
* GEOS_USE_ONLY_R_API macro support (#695)
* PHP: WKBReader->read() & WKBWriter::write() methods
* GEOSClipByRect (#699)
* CAPI: thread-safe message handling API (#663)
* Speed-up intersection and difference between geometries
with small bounding box overlap.
* CAPI: add MULTILINESTRING support for GEOSisClosed
* Added no-parameter CoordinateSequenceFactory::create method
- Update libruby.patch
- Remove depreciated %py_requires macro