Fixed rnaToProtein to require stop
Changed import of Data.Map to qualified
rnaToProtein changed to rnaToProteins
rnaToProtein changed to rnaToProteins
Changed continuousSequences call to tails in lcsm solution resulting in speedup
Updated comments to reflect removal of continuousSubsequences call in favor of tails
Removed some unnecessary parentheses
Added empty function to create empty tree node