ChangeLog: file updated for v4.1.0

ChangeLog: file updated for v4.0.4

ChangeLog: updated for v3.3.5

Bugfixes, documentation updates and DragonFly BSD support.

Among the most important/critical bugfixes:
- *BSD compile/install fixes
- tcp fix fd passing bug (30fabfb). In worst case scenarios
  (very heavy traffic and connections opened and closed very
  quickly) it is possible that some processes will remain blocked
  while trying to send on tcp.
- *BSD specific tcp fixes (ea37f13, ef1e1b4, 0a38c9a, 4cfd8e1).
   Under very heavy traffic some of these can cause crashes.
- memory leak (pkg) in some tm script functions (ebe2908)
- various modules_k/dialog fixes
- ser radius modules revived (k ones cannot be used with ser auth
  module): 5d214e8

Roughly synchronized with kamailio 3.0.3 (except packaging, xavps
and the warning headers default).

tmx: updated for last tm changes

- cancel_uacs() takes new type of paraeters
- reply function takes str* parameters

Mostly bugfixes & docs.

Roughly synchronized with kamailio 3.0.2 (except packaging, xavps and
 the warning headers default).

Mostly bugfixes & docs.

Roughly synchronized with kamailio 3.0.1 (except for xavps).

Tagging Kamailio 3.0.0 release

Before merging experimental branches.

sip-router before kamailio and ser modules merge