[CAT-1074] nexus7 workaround for checking flash

nexus7 bug fixed. prevents stage start and displays toast message

nexus 7 flashlight bug fixed

LedBrickTest for other devices extended

stacktrace prints

forgot to release camera in test class

fixed number of bricks in category brick test

wrong number of motion bricks fixed

vibration measurement debugging

nexus7 bug fixed. prevents stage start and displays toast message

nexus 7 flashlight bug fixed

LedBrickTest for other devices extended

forgot to release camera in test class

fixed number of bricks in category brick test

wrong number of motion bricks fixed

testcase refactored

wrong ip address