Updating submodules

* OMCompiler fa70703...06ed6bf (1):
  > - using the var-index mapping of the cpp runtime for hpcom memory optimization - removed debug output - fixed a mapping bug in cpp code generation - updated the git ignore file

* doc 3360702...49f391f (2):
  > Compile latex pdf
  > Add 'listings-modelica/' from commit 'fc5a2466d2c760e0d75d13ee3fd8ceb550cfabd1'

* testsuite 5f0cfbf...805d90b (3):
  > Merge pull request #5 from mflehmig/master
  > Add ThermoSysPro reference files
  > Merge pull request #4 from mflehmig/master