Fix spelling mistake in prerequisites message
Add prerequisites only target. This makes it easier to install just the prequisistes and then take a snapshot for testing this script.
Correctly gather return value from compile commands
Renable all tasks after testing
Issue #5: Add memory check before commencing build
Issue #5: Tune the ammount of required memory, and remove accidentally introduced exit command from GNUradio installation
Issue #1: Add test for QT version in pre-requisites
Issue #1: Adapt qt check to take into account older distros where there is no QT5
Merge pull request #4 from realflash/master

Fixes for issues 1, 2, 5