Properties precedence

[pun-ky]

the last one has always-win precedence...

expected:

1. gradle.properties
2. gradle.user.properties
3. CMD line -Pkey=value

actual:

1. gradle.user.properties
2. gradle.properties
3. CMD line

actual when setting fork.override=true

1. gradle.properties
2. CMD line
3. gradle.user.properties