Allow pillow 4 since there were no BC breaks
Allow pillow 4 since there were no BC breaks

just drop of python 2.6, which is already dropped by thumbor

scorphus/thumbor,okor/thumbor,okor/thumbor,scorphus/thumbor,thumbor/thumbor,gi11es/thumbor,kkopachev/thumbor,thumbor/thumbor,scorphus/thumbor,okor/thumbor,gi11es/thumbor,thumbor/thumbor,scorphus/thumbor,marcelometal/thumbor,gi11es/thumbor,kkopachev/thumbor,kkopachev/thumbor,voxmedia/thumbor,voxmedia/thumbor,marcelometal/thumbor,thumbor/thumbor,marcelometal/thumbor,voxmedia/thumbor,kkopachev/thumbor