Merge branch 'release/0.1.3' into develop

whats all this?
+ 0.1.3-0           more info about `git flow release finish ...` in the ‘Versions’ section;
+ 0.1.3-1           headings and styling in the ‘Versions’ section;
0.1.3-2           format tweaks in the ‘Versions’ section;
+ 0.1.3-3           `git flow hotfix...` in the ‘Versions’ section;
+ 0.1.3-4           more code-styling in the ‘Versions’ section;
+ 0.1.3-5           various ‘Versions’ section text amends;
+ 0.1.3-6           before release 0.1.4;
+ 0.1.4             `$ git flow release start 0.1.4` with no `-rc.*` needed;
Merge branch 'release/0.1.4'