Fixed problem running instrumentation with spaces in path to ADB

Fixed problem running instrumentation on Windows if path to ADB contains spaces (e.g. C:\Program Files).
Added instrumentation process error message output on spawn.
The problem is that on Windows when you spawn a process you have to pass fully qualified path to the executable as a first parameter and array of arguments as a second.
In this case we could not use adbCmd because it contains double quotes and additional parameters.