Change DalvikRunner to use newly added OptionParser.

--skip-clean is now --no-clean
--java-home now defaults to 1.5
--mode is now used to specify to run on host's java-home

DalvikRunner page examples are updated with new --mode and --java-home

Fixes junit tests to work on host by using changing classpath to be absolute paths

Some minor scaffolding to prepare for running tests within an android.app.Activity.

(Patchset 2 adds default --java-home location to usage output)
(Patchset 3 address reviewer comments, mostly newbie style issues)
(Patchset 4 address enh OptionParser issues, adds short/byte as well)
(Patchset 5 address enh OptionParser issues, work with "java" from PATH, change deviceRunnerDir to File)
8 files changed