improve hash key handling

#189 #199 implement and test map rehash

#199 test removing via iterator

fix wrong slot and index numbers

corrects documentation of iterator behavior

add convenience function to make keys from strings

remove unused header

#199 tests for hash map

(0) -300 -100 -30 -10 -8 +8 +10 +30 +100 +300 tip

mercurial