Add Gradle build template files

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
Install Gradle in the workspace

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
bndoc: gradle: do not include this project in the build

Like was done for the Ant build

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
bndlib.tests: gradle: fix the test directory setup

So that it can be built by the template

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
dist: gradle: add a dist task that releases everything and indexes the release repo

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
Remove the Ant build

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
Clean git ignore files

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
libg: clean up after tests

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
libg: fix a test

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>