vanilla-golo script with no JVM tuning

This is suitable for environments where the default JVM tuning that we provide in golo do not apply,
such as RaspberryPi that do not support 1024M heaps and -server compilation.

Closes #95
SAM support for function calls
SAM support for methods
SAM test cases
Simplification of samples with SAM interfaces
Closure SAM passing documentation
Merge pull request #96 from jponge/wip/sam-filters

Directly pass functions for single-method interfaces