Cut some spells from rod spell lists.

This is a move towards rods having fewer, more unique spells in them. Some of
the remaining multiple-spell rods (especially destruction and warding) might
get replaced by new rods with exciting, unique effects (or just removed), but
let's start with some simpler changes.

Rod of summoning: remove Recall and Call Canine Familiar, rename to
                  rod of the swarm.

Rod of destruction [inacc,magma,cold]: remove Bolt of Magma and Bolt of Cold,
                                       rename to rod of inaccuracy.

Rod of venom: remove Cure Poison, replace Venom Bolt with OTR.
Update the spell list in handle_rod() to account for rod spell changes.

Also, add a comment mentioning that Olgreb's Toxic Radiance is currently
not implemented for monsters, so monsters cannot cast it using the rod
of venom.

What should be done about the direct effect code, unused since the rod
of smiting was removed?
Webtiles: Fix view errors for newly joining spectators.
Don't dispel Trog's hand or permanent confusion with ?vulnerability
Invert the augmentation mutation.

It now gives slaying and spell power boosts at high HP rather than low HP.
Display the status light for non-spell sources of RMsl.

As with flight, the light is white instead of blue when permanent.
Tweak scales mutation numbers.

Mainly small buffs of +1 AC to the weaker scales.
Make the status light for perma-RMsl blue instead of white.

On second thought and after some discussion on IRC, I think that it is
better for this light to be the same color for permanent and temporary RMsl.
Knowing whether RMsl is permanent is much less important than knowing whether
flight is permanent, as the latter affects autoexplore behavior and means you
don't need to be paranoid about drowning. It's better just to have the same
old reassuring blue light in this case.
Webtiles: Clarify a message.
Webtiles: Re-fix more prompts while loading the level (e.g. from labs).

I broke this again during the messages rewrite.
Make I and z? usable again in debug builds.

Since 1f7c9b4d, if you know even a couple beam spells, you need to go
through several --More--s every time a spell list is shown.

These tracers are not really useful for debug purposes as you can get a
regular tracer if you want, so there's no reason to show them all.
Don't actually run delve at builddb stage.

Most other layout generators bail out too, and delve() calls were a
significant part of builddb's CPU use.  Mostly due to iterators as usual
(pending a painful rewrite), but even if we optimize them, it's an easy
speed-up.
Many Singing Sword contributions (jwb on tavern).
Updated sdl-android
Transifex format fix.

Signed-off-by: Raphael Langella <raphael.langella@gmail.com>
Transifex sync.

Signed-off-by: Raphael Langella <raphael.langella@gmail.com>
Transifex format fix.

Signed-off-by: Raphael Langella <raphael.langella@gmail.com>
Gray out the Repel Missiles spell if you have the mutation or amulet.
Don't note temp mutations at all.

They don't leave a lasting enough impression, and they were indistinguishable
from normal ones in the log.
Don't make a milestone if for any reason you pick up the same rune again.