Create tag 6.2.1

Create tag 6.2.0

Create tag 6.1.1

Create tag 6.1.0

Fix build issues on Solaris

Create tag 5.2.0

Merge remote-tracking branch 'osgeo/master'

bump man3 version numbers

Update release date

Merge pull request OSGeo#405 from kbevers/selftest-compile-flag

Changed self-test build behaviour from opt-out to opt-in