Add ShadowDrawerLayout and implement get/set DrawerListener
Update travis configuration to install the android support library
Change maven path for support-v4 jar
Merge pull request #841 from pivotal-odell/add-shadow-drawer-layout

Add shadow drawer layout
Add logging to Travis install script
Use TRAVIS_BRANCH env var to determine which branch is being built
ShadowLog.LogItem equals, hashCode, and toString.
Merge pull request #844 from robolectric/jw/log-equals

ShadowLog.LogItem equals, hashCode, and toString.