Zone load tips

The game will now look in a zone's definition files for load_tips to display when loading a level of the zone, in that silly waiter titled Loading level...
Load_tips are an exact copy of the ones in module definitions except they can't contain images. They also shouldn't be too long because the waiter looks silly too stretched.

At least the players have something to look at in addition to just "Please wait while loading the level...". As mentioned on IRC, they could be used for special zones (Caldera, dreams, Angolwen). For other zones, they might not be added at all or just contain a copy of the normal loading-game tips.

The PR doesn't include any load tips for said zones because I can't into ToME lore :P

More fixes

Makes solipsist rares on nightmare+ less annoying

Caustic weapon fix

Fixes crash when corroding armor with the caustic weapon ego.

Small fixes

some forum complaints being fixed, nothing big.

More fixes

Standardizing charm powers

Makes the on use description for tools, amulets, mindstars and staves more consistent and standardizes use_power definitions.

Fixes a couple of typos and prepares npc objects use.

More minimap grids

Makes doors and known traps detected at range remembered (and on the minimap)

Merge branch 'RandBossCallbacks' of http://git.net-core.org/Hachem_Muche/t-engine4 into Hachem_Muche/t-engine4-RandBossCallbacks

Conflicts:
	game/engines/default/engine/interface/ActorInventory.lua

Merge branch 'npc-starting-stats' of http://git.net-core.org/grayswandir/t-engine4 into grayswandir/t-engine4-npc-starting-stats

[FOR REVIEW, NOT FOR 1.3] Staff, obey my command!

New extensible command-staff system. Possibly callbacks may be added to it, too.
I haven't used it yet, need to consult HousePet for artifact work.

Master

Fixed archery to properly do on_hit, on_crit, and on_kill effects for ranged weapons and ammo.  It now properly handles single and multiple effects from a single weapon or ammo.

Fixed Archery to properly do on_hit, on_crit, and on_kill effects.  It can now handle multiple types of each from ranged weapons and ammo.

rename ldoc configuration file
remove ldoc examples
add readme for ldoc generation
make sure tengine_doc isn't included with git

More fixes

Better?

Twist Fate gives better messages when an anomaly is targeted

Damtype proc display

Long story short, made it display when it procs, not just whenever. I feel like that's more interesting to see, and it was brought up several times.

Fbo mrt

for after 1.3

Small fixes

Couple small things.