Merge branch 'develop' for 1.7.2 release

Merge branch 'develop' for release 1.7.1

Merge branch 'develop' prior to 1.7.0 release

Merge branch 'develop' for release 1.6.2

fixed version number on ios... this is actually the 1.6.2 revision fo…

…r mobile releases

updated snap version, forgotten again

Merge branch 'develop' for version 1.6.0

updated snap version... always forget that!

Merge branch 'develop'

move tag