Add concurrency gesture for background services. Fix tickets #102 and #103.

git-svn-id: http://svn.zoo-project.org/svn/trunk@507 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3
Stop blowing the stack in ulinet. Add API function addToMapWithSize for assigning binary data to map. Add support for binary inputs/outputs for the PHP language.

git-svn-id: http://svn.zoo-project.org/svn/trunk@508 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3