Throw an error when the screen is refreshed too frequently to dump

https://android.googlesource.com/platform/frameworks/testing/+/jb-mr2-release/uiautomator/cmds/uiautomator/src/com/android/commands/uiautomator/DumpCommand.java
Merge branch 'master' of git://github.com/Fuzion24/AndroidViewClient into Fuzion24-master
Check for error message only at the beginning of the received str
Merge branch 'Fuzion24-master'