Improved squelching abilities. Add Moderators with separate who list color.

Forum post: http://openmeridian.org/forums/index.php/topic,211.0.html
Wiki page: http://wiki.openmeridian.org/index.php/Squelch (still need to fill this out)

This pull request revamps the Squelch spell to work via trance time instead of by target. During the trance time, the admin/moderator can say a player's name and a type of communication to remove, or just the name to toggle all forms of communication for that player. More detailed instructions are given when the spell is cast.

These operate via piFlags2 and are included in the PFLAG2_MASK so they are not removed via any method available to players. The DM and Admin class can be squelched, but Creator class cannot. Admins and DMs cannot squelch or unsquelch themselves.

Removed some of the remaining investigator code from player.kod, and did some grammar/layout clean up in dm.kod, admin.kod and creator.kod.

All squelches are logged to the God Log with DM and target names.

**Edit**

Added Moderators, need to be created on a User account (with DM user) instead of a DM account as the 'goroom' command checks for account type, not user type. Once the DM user is created, it can be made into a Moderator by sending 'send o objectnumber BecomeModerator'. They get the Squelch spell and are immortal, but have no other powers (save for changing their karma and summoning a totem). Moderators show up dark blue on the who list.

Guides can be created by sending BecomeGuide, and receive most of the DM spells (notable exceptions are Smite, Vilify, Pardon, Superior Hold and boons). They can use DM say commands except for anything that results in item creation or character boosting. If created on a DM account, they can teleport to rooms (but cannot teleport to or get players).

The access level for the goplayer/getplayer commands in blakserv\config.c has been raised to ACCOUNT_ADMIN, and goroom lowered to ACCOUNT_DM. The Deliverance spell now only works in OoG for DMs (to send a damned player home), but works everywhere for Admins.