mapID() function unit test.
LEE is a good teacher, issue #6
Merge commit 'c6323e7d252e399057db2b97f31b41f7b5e1373e' into develop

* commit 'c6323e7d252e399057db2b97f31b41f7b5e1373e':
  LEE is a good teacher, issue #6
  mapID() function unit test.

Conflicts:
	test/test_computeUtil.js