Clean up Java server code
Merge pull request #2799 from bootstraponline/java_clean_up

Clean up Java server code
document processArgument cap
fix #2779
Set most verbose log level as default
Merge pull request #2803 from bootstraponline/debug_default_log_level

Set most verbose log level as default
Adding hideSoftKeyboard for android, updating package.json and updating appium-adb submodule
Merge pull request #2806 from moizjv/fix-2021

Adding hideSoftKeyboard functionality  for android, updating package.json and updating ...
wd upgrade, updated node touch action api