Moved code from `sequence.ceylon` to `Sequence.ceylon` and removed the now empty file because we can't have files with the same name with only a difference in case (Windows and Mac)
Moved code from `sequence.ceylon` to `Sequence.ceylon` and removed the now empty file because we can't have files with the same name with only a difference in case (Windows and Mac)

gijsleussink/ceylon,gijsleussink/ceylon,gijsleussink/ceylon,gijsleussink/ceylon,gijsleussink/ceylon