Merge branch 'commits-calendar-height' into 'master'

Fix commits calendar vertical days.

Fixes #2031.

Before:

![Screen Shot 2015-02-20 at 14.36.31](https://dev.gitlab.org/uploads/gitlab/gitlabhq/08d322797b/Screen_Shot_2015-02-20_at_14.36.31.png)

After:

![Screen Shot 2015-02-20 at 14.35.54](https://dev.gitlab.org/uploads/gitlab/gitlabhq/0cfbabad26/Screen_Shot_2015-02-20_at_14.35.54.png)

See merge request !1555

app/assets/javascripts/calendar.js.coffee

@@ -16,11 +16,8 @@ class @calendar
       subDomain: "day"
       range: 12
       tooltip: true
-      domainDynamicDimension: false
-      colLimit: 4
       label:
         position: "top"
-      domainMargin: 1
       legend: [
         0
         1