[osmdroid/osmdroid] ab6d90: Added some Javadoc explanations related to #867

[MKergall]

Branch: refs/heads/master
Home: https://github.com/osmdroid/osmdroid
Commit: ab6d90326cbf3e64f849876b0722507bae0d2b90
https://github.com/osmdroid/osmdroid/commit/ab6d90326cbf3e64f849876b0722507bae0d2b90
Author: MKergall <mathieu...@gmail.com>
Date: 2018-02-05 (Mon, 05 Feb 2018)

Changed paths:
M osmdroid-android/src/main/java/org/osmdroid/views/MapView.java

Log Message:
-----------
Added some Javadoc explanations related to #867