Allow exceptions whose header has no message.
Dependency updates.
Added a command line argument which disables animated gif generation for slower machines
Made the changes requested by @JakeWharton
Support only running tests annotated with a TestSize. Fixes #124

* Adds a --size command line parameter that takes 'small', 'medium',
  or 'large' as a value
* Adds a small bit of text to the HTML output indicated which size
  was run
Fix typo in README
Changes based on @JakeWharton's comments

* Formatting changes
* CLI parameter description
* Move TestSize formatting into presentation layer
--adb-timeout parameter added
fix nullpointer in SpoonRunner.Builder.addDevice
ddmlib bump.
Ensure device serials are properly sanitized for file system use.