Merge tag '0.1.6' into develop

0.1.6
Choose `m` for 'in a month'.

As suggested in http://lists.gnu.org/archive/html/emacs-orgmode/2014-03/msg01094.html.
Merge pull request #2 from yasuhito/feature/fix_inamonth_shortcut

Choose `m` for 'in a month'.
Added an entry to changes section.

See 5eed27da0e11dbe633ede89acfd66c74b35bb540
New screenshot (`m' for 'in a month').
Added version 0.1.6 entry to changelog.
Version bump.
Merge branch 'release/0.2.0'