make mime-types for images of different types be explicit and distinct
make mime-types for images of different types be explicit and distinct

CodeGrade/bottlenose,NatTuck/bottlenose,CodeGrade/bottlenose,blerner/bottlenose,NatTuck/bottlenose,NatTuck/bottlenose,blerner/bottlenose,blerner/bottlenose,blerner/bottlenose,CodeGrade/bottlenose,CodeGrade/bottlenose,CodeGrade/bottlenose,NatTuck/bottlenose,blerner/bottlenose,NatTuck/bottlenose,NatTuck/bottlenose,CodeGrade/bottlenose,blerner/bottlenose,CodeGrade/bottlenose,blerner/bottlenose