Fixed an issue where alerts with no title will return the text as null, instead of the alert's message content. Similarly, fixed in the converse.
Merge pull request #1771 from jasonchutko/alertview-notitle

Alerts with no title will return the text as null, instead of the alert's message content.
Fix issue #1775: Selendroid doesn't wait for app-wait-activity
Merge pull request #1776 from rgonalo/master

Fix issue #1775: Selendroid doesn't wait for app-wait-activity
fix pre-launch bug (fix #1772)
and add tests