Added rewritten dictionary, list, and set modules. Need refactor.
Added character list and set.
Added method to clear all elements in a list.
Fixed up dictionary keys method.
Use type bound procedures for Timer.
Refactored to use new list, dictionary, and set implementations. Closes #56 on github. Closes #31 on github.
Changed version necessary for gfortran in install instructions.
Added install and uninstall targets in Makefile.
Updated install instructions.
Merge branch 'ListDictRefactor'