MEDIUM: actions: Normalize the return code of the configuration parsers

This patch normalize the return code of the configuration parsers. Before
these changes, the tcp action parser returned -1 if fail and 0 for the
succes. The http action returned 0 if fail and 1 if succes.

The normalisation does:
 - ACT_RET_PRS_OK for succes
 - ACT_RET_PRS_ERR for failure
5 files changed