F90nml

- Array patching is now supported
- NumPy primitives can be converted to Fortran types
- File objects can now be used as input arguments

- File object read and write support
- Escape (\) character support in strings
- Fortran floating point `E` symbol is now optional (with +/- exponent)

- `f90nml.write()` works for normal (non-`Namelist`) dicts
- `Parser` properties moved outside of function arguments, and are now
handled with property decorators (as in `Namelist`)
- Namelists built from (unsorted) dicts are now pre-sorted by key

- User-defined comment delimiters (e.g. `` comment support)

- Null values are now always followed by commas

- Default logical parsing is now more strict. Only `true`, `false`, `t`,
and `f` (and with surrounding `.`) are now parsed to equivalent values.
- Extensive documentation update