Add 'shptreetst' executable to cmake build
Install 'scalebar' and 'legend' executables
Merge pull request #4744 from fredj/scalebar_install

Install 'scalebar' and 'legend' executables (#4744)
Merge branch 'fredj-shptreetst_build'

Conflicts:
	CMakeLists.txt
update version string for beta2
add missing entries in 6.4 history