this makes efl ignore certain env vars for thnigs and entirely removes
user modules (that no one ever used) etc. etc. to ensure that *IF* an
app is setuid, there isn't a priv escalation path that is easy.
Being annoyed by different types of eina critical macros - CRI, CRIT,
CRITICAL -, I concluded to unify them to one. Discussed on IRC and
finally, CRI was chosen to meet the consistency with other macros -
ERR, WRN, INF, DBG - in terms of the number of characters.
If there is any missing bits, please let me know.