Update README.md
cleanup autoconf files
readme fixes
build script fixes
Merge commit 'a84977d' into develop
4.0.2rc1 updates
4.0.2rc1 updates for autoconf
4.0.2rc2 updates
4.0.2rc3 updates
initial 4.5 merge
initial 4.5 merge: autoconf
4.5 merge #2
4.5 merge #2: autoconf
4.0.2.1 updates
4.5 merge #3
4.5 merge #4
4.5 merge #4: autoconf
4.5 merge #4: more autoconf
4.5 merge #5
4.5 merge #5 autoconf