Version v1.2.1

Merge pull request #146 from jokva/man-page-segyio-cath

Man page for segyio-cath

Version 1.2.0

Merge pull request #137 from jokva/remove-ppa-for-cppcheck

Build improvements & segyio.tools.rotation

Version v1.1.0

Merge pull request #130 from jokva/update-pycmake-generate-setup-py

Generate setup.py and deploy pip packages on Travis & Appveyor