Fix remakes' titles, e.g. "Fire Red" to "FireRed". #196

Like I said, it is a bit funny-lookin', but it's correct.

diff --git a/versions/fire-red.png b/encounters/slot2-firered.png
similarity index 100%
rename from versions/fire-red.png
rename to encounters/slot2-firered.png

diff --git a/versions/leaf-green.png b/encounters/slot2-leafgreen.png
similarity index 100%
rename from versions/leaf-green.png
rename to encounters/slot2-leafgreen.png

diff --git a/encounters/slot2-fire-red.png b/versions/firered.png
similarity index 100%
rename from encounters/slot2-fire-red.png
rename to versions/firered.png

diff --git a/versions/heart-gold.png b/versions/heartgold.png
similarity index 100%
rename from versions/heart-gold.png
rename to versions/heartgold.png

diff --git a/encounters/slot2-leaf-green.png b/versions/leafgreen.png
similarity index 100%
rename from encounters/slot2-leaf-green.png
rename to versions/leafgreen.png

diff --git a/versions/soul-silver.png b/versions/soulsilver.png
similarity index 100%
rename from versions/soul-silver.png
rename to versions/soulsilver.png