Additions from reunion-dev version

[RauliTop]

Original post from here: https://dev-cs.ru/threads/135/page-25#post-192845

After comparing the new versions in GitHub with the dev version: https://dev-cs.ru/resources/585/
I've noticed some configurations are missing or removed without notify them.

1. cid_SSE3: I remember to read something about it's no longer supported, but there's no advertise in changelog.
   Already mentioned on: [Feature request]: Bring back SSE support #6

2. QueryRateLimit: already removed from configuration on new versions.

QueryRateLimit (128/2048)
Global rate limit for server queries in packets/sec.
Default: 256
QueryRateLimit = 256

3. LogAttacks: already removed from configuration on new versions.

LogAttacks (0 / 1)
Log attacks to reunion_attacks.log
Default: 1
LogAttacks = 1

4. IPClientsLimit: removed and added IDClientsLimit (steamid instead of IP)
   Already have ReHLDS cvar: sv_rehlds_maxclients_from_single_ip
   So I think this is outdated on Reunion.

IPClientsLimit (0 - 32)
Maximum number of clients from single ip. Useful for computer clubs.
Default: 5
IPClientsLimit = 5