More GitIgnore magic
Use specific imports instead of *, Reorder
Check if wifi is loginable in separate utility function

* This is a good thing to modularise. We might also need to change the logic of
  this particular module in future
Update buildTool/SdkVersion to 21
Update build server's tool version
Make Travis work finally
Print log after failure
Merge branch 'master' of github.com:DevelopFreedom/logmein-android into chaudhary