Lots of monster stuff, particularly documenting monster abilities

- Monster radiate abilities can now specify a spell pattern to use
- Fix some abilities being incorrectly shown in the editor's ability details dialog (for example, radiate abilities were shown as "Summon aid")
- Add the recently-added monster missile types to the options offered in the editor
- Fix chance of activating not being editable for the martyr's shield ability
- Show the monster summoned for summoning abilities (finally!)
- Show the subcategory for unusual abilities (one of active, passive death)
- Fix the displayed percentage chance for summon abilities (the permille was shown instead)
- Fix incorrect action point display in the editor for the two recently-added monster missiles
- Fix crash when editing a missile ability
- Fix abilities page not showing the newly-added or recently-edited ability after exiting the detail/option dialog
- Fix pick monster button for summoning abilities being off by one

doc/editor/appendix/Terrain.html

@@ -11,11 +11,11 @@
 </div>
 <div class="content">
 
-<h1>Appendix 3 - Starting Terrain Types</h1>
+<h1>Appendix 4 - Starting Terrain Types</h1>
 
 <p>There are 256 premade terrain types (numbered 0 - 255) in the basic scenario you start
 with. Many of them have special properties, or need to be handled in different ways.
-Remember that terrain types 0-90 cant be edited (except for the graphic).</p>
+This appendix also notes which terrain types are used by the default combat arenas.</p>
 
 <ul>
 <li>Type 0,1 - Cave Floors (2 types)</li>
@@ -91,6 +91,36 @@ terrain type, after the special is triggered the white spot will disappear.</li>
 different cardinal directions.</li>
 </ul>
 
+<h2>Combat Arenas</h2>
+
+<ol start='0'>
+<li>Grassy field - uses terrain types 2, 3, 4, 112, 114, 115, sometimes 83</li>
+<li>Ordinary cave - uses terrain types 0, 1, 93, 94, 95, 98, sometimes 82</li>
+<li>Mountain - uses terrain types 36, 37, sometimes 83</li>
+<li>Surface bridge - uses terrain types 50, 63, 64, 83</li>
+<li>Cave bridge - uses terrain types 71, 74, 82</li>
+<li>Rubble-strewn cave - uses terrain types 0, 84, 92, 95, 97, 98, sometimes 82</li>
+<li>Cave forest - uses terrain types 0, 91, 92, 93, 95, 98, sometimes 82</li>
+<li>Cave mushrooms - uses terrain types 0, 1, 92, 93, 94, 95, sometimes 82</li>
+<li>Cave swamp - uses terrain types 0, 1, 92, 95, 96, 112, sometimes 82</li>
+<li>Surface rocks - uses terrain types 2, 3, 87, 110, 113, 114, sometimes 83</li>
+<li>Surface swamp - uses terrain types 2, 3, 4, 111, sometimes 83</li>
+<li>Surface woods - uses terrain types 2, 3, 4, 112, 113, 114, sometimes 83</li>
+<li>Surface shrubbery - uses terrain types 2, 3, 4, 112, 114, 115, sometimes 83</li>
+<li>Stalagmites - uses terrain types 0, 1, 75, 76, 97, 98, sometimes 82</li>
+<li>Cave fumarole - uses terrain types 0, 1, 75, 76, 94, 98</li>
+<li>Surface fumarole - uses terrain types 36, 37, 75, 76</li>
+<li>Cave camp - uses terrain types 0, 1, 92, 93, 94, 95, 98, 104, 105</li>
+<li>Surface camp - uses terrain types 2, 3, 4, 104, 105, 112, 114, 115</li>
+<!-- Note: In the above, 104 and 105 will be replaced, as they are the bedding and campfire. -->
+<li>Cave crops - uses terrain types 0, 1, 84, 93, 97, 98,
+plus the terrain type the arena was triggered from</li>
+<li>Surface crops - uses terrain types 2, 3, 4, 87, 110,
+plus the terrain type the arena was triggered from</li>
+</ol>
+
+<p>In addition to the above, the walls (5-35) are used to make edges around the map and occasionally pillars in the middle.</p>
+
 </div>
 </body>
 </html>