"package run" for android development phones

[kevwilde]

Only android emulators are currently supported when one runs the following command

$ espresso package run <androidpkgname>

The config should describe what package to build, but the following added behavior would seem appropriate:

• when "adb" only finds one device: try to launch it on that one
• when multiple devices are found: inform the user to specify the target device.
• allow an override using a command flag (-t) to specify which device to target for launch.

[spirinvladimir]

+1, now i'm changing "adb -e" for "adb -d" in package file.