Updated docstring of wrap()—before implementing the new scalar-to-UFloat-keyword-argument feature.
Fixed default argument.
Added comment about special case.
Merge branch 'master' into wrap_keyword_floats
Work in progress: changing the result of wrap(), so that wrap functions accept (1) any type of arguments and (2) handle numbers with uncertainties in optional keyword arguments.
Merge branch 'master' into wrap_keyword_floats
partial_derivative() can now differentiate with respected to a variable defined by its optional keyword argument name. Furthermore, differentiated functions now accept optional keyword arguments.
Added note on wrap()ing functions that already accepts some arguments with uncertainty.
More idiomatic use of NumPy.
Work in progress: adding the possibility for wrap() to accept non-numbers too.
Work in progress: generalizing wrap() so that (1) wrapped functions accept any type of argument (not only floats or numbers with uncertainties) and (2) wrapped functions accept keyword arguments with a value with uncertainty.
Added comment where wrap() should be next updated.
Merge branch 'master' into wrap_keyword_floats
Work in progress: making wrap() more general. Comments update.
Added comment
Merge branch 'master' into wrap_keyword_floats

Conflicts:
	uncertainties/__init__.py
Merge branch 'master' into wrap_keyword_floats
Updated docstring and comment so as to reflect the new capabilities of partial_derivative().
Code more readable.
Working on the more general wrap(). Work in progress.