Change Boots of Speed and Boots of Elvenkind to ensure that they are at
least +2 and +4 respectively.
(cherry picked from commit 5dbb5c1cf833c4092706298f23d46b771c11b0fb)
Nerf GCV
Merge pull request #229 from fizzix/fizzix_merge

BoS fix and nerf GCV vault
Tidy up solid/hybrid wall options
Clean up the logic for hybrid and solid walls
Fix indentation
Fix up compiler warning
Fix lighting logic in cave.c
Merge Nick's background colour changes with fixes
trap.c: remove uses of FEAT_*
monster/mon-util: de-FEATurize
wizard.c: de-FEATurize
spells2.c: remove FEAT_*
More FEAT_* removal
The war continues.
Include names in the store config file.
remove FEAT_* from spells1.c
more FEAT_ removal
Finish up FEAT_* refactor.
Skip the invisible trap feature when dumping to file too