Fixed missing header file error.
Enhance the synthetic benchmark with variable workloads and number of runs.
More flexible benchmark interface.
testcase for initialiser boxes

added a testcase for init boxes (in C); the example consists of one init box in
parallel with an identity filter. No input is required, only record in input.xml
is the terminate record.
added output for checking in initbox test case
fixed unused variable and wrong format string warnings
extract from the commit of Merijn August 17, 2012
- there are two many conflicts for other files -> merge manually for
  these 2 files
New .gitignore.
Enable separation of output in the pipeline benchmark based on tag string.
Enhance the 'make compile' target for the pipeline benchmark.
Update .gitignore.
changed include statements in scc distrib files
modify to adapt to lpel_decen with task migration
 - modify glue_decen to adapt with changes in lpel_decen
 - in box entity, after processing one message record --> check if it
   should be migrated (used in random-based migration)