replace boost::unordered_map with std::unordered_map
added read_test and fasta_test
added filter_test
merged
added configure and removed Makefile
modified configure to check .so libraries
debugged average LowLevelError
debugged MerLengthError and removed -t option
added import_mer()
modified for ubuntu
added some value_types
added namespace carl
added a function to list scores