add diagnose commands to track paths
print more directory info
make the sdk directory 0755
remove $PATH display
Fix: ~/builds changed to ~/build. Oh well.
typo: platform_tools -> platform-tools
no platform-tools? seems I missed some changelog items...
still no platform-tools...

Let's see what happened to the SDK after installing...
see what is inside platform-tools/
maybe stale hashes is the reason, so flush them
(Hopefully) eventually fix .travis.yml

... with information provided in
http://rkistner.github.com/android/2013/02/05/android-builds-on-travis-ci/
some conf migration choice has to be answered

Just use the default, since the affected conf file (/etc/mysql/my.cnf)
is not used by our project.
Merge branch 'fix-travis-yml'
Merge branch 'add-url-image-support'
add forgotten license header
Merge branch 'fix-license'
Sync w/ master