3.1.1-rc2

close #45; ctrl scroll wheel zooms, scroll wheel shifts zoom range

3.1.1-rc1

upversion to 3.1.1-rc; options to force OpenGL SL versions

3.1.0

upversion, documentation update

3.0.5-rc2

tag as release candidate

3.0.5-rc1

remove unused code; stop sampling on shutdown

3.0.4b

fix ubuntu build (travis)

3.0.4-rc1

set debian package dependencies automatically

3.0.3

upversion, small histogram ui improvement

3.0.1

upversion, manual update

3.0.0

consistent marker handling; user manual update; upversion