Expose a SpeechBubble class that can encapulates location, color, and name.

There are helper functions that will generate the icons into Google Map markers.
Update README.md file to include stuff about AndroidMapsUtils.
Merge pull request #28 from rogerhu/speech_bubble

Speech bubble stuff.
Needs to be longitude. :)
Merge pull request #29 from rogerhu/longitude

Longitude
Add Roboto font + styles.

Using https://github.com/mafshin/CustomTextView.

Move to views.  Add a Typefaces HashMap class that caches instances of Typefaces to avoid memory leaks.