Release 1.6.0
Switched to 3 digit version numbers since from now on we're likely to just be fixing bugs.
Commits since previous release:
72d608e 2017-02-26 (HEAD -> master, tag: v1.6.0, origin/master, origin/HEAD) bumped version and tweaked logo [Ben Meier]
d9b21a5 2017-02-26 added and documented new template functions [Ben Meier]
b1e303f 2017-02-23 (tag: v1.5) bump to 1.5 [Ben Meier]