Start incorporating docopt
Put git clone of docopt in src

That way new versions of docopt can be swapped in
once CMakeLists.txt is configured correctly

TODO: Fix CMakeLists.txt so out-of-source build works
Right now a manual build works in the docopt.cpp directory:

clang++ --std=c++11 ==stdlib=libc++ -I . docopt.cpp examples/naval_fate.cpp -o
naval_fate

This doesn't work here since the create_single_source_cgal_program function
is called from the CGAL_CreateSingleSourceCGALProgram.cmake module

We need to add the correct header directories and targets
Directory not retaining files
Add docopt files in directory
Fixup directory rename from docopt.cpp to docopt
Fix CMakeLists.txt

create_single_source_cgal_program actually handles multiple source files
quite nicely, so it was an easy fix
Help message successfully parsed by docopt
cdt-docopt now has same functionality as cdt
Rename old version of cdt.cpp and swap in new

docopt is a go
Ready to merge!
Fixed failing integration tests
Merge pull request #2 from acgetchell/docopt

Integrate docopt