cgeo/c-geo-opensource — pull request #1220 by campbeb (2012-03-03 10:07:32+00:00)
Title: Fix check for calendar add-on installed

The calendar add-on AndroidManifest.xml includes a filter for data type.
Therefore, to successfully check it if is installed, the Intent must have data type as well.

From http://developer.android.com/guide/topics/intents/intents-filters.html
"An Intent object that contains a URI but no data type passes the test only if its URI matches a URI in the filter and the filter likewise does not specify a type."

Addresses problem discussed in #1166 (but doesn't fix #1166).