Add module rename support and URLResolversTransformer

[jayvdb]

No description provided.

[browniebroke]

Just making a note for documenting this later:

Deprecated in Django 1.10:

Importing from the django.core.urlresolvers module is deprecated in favor of its new location, django.urls.

And removed in Django 2.0:

The django.core.urlresolvers module will be removed.

[browniebroke]

Looks great! Thanks for this contribution. I've a couple of small comments on tests, I think it would be nice to add an extra one.

Could you please also update the documentation please?

[sourcery-ai]

Sourcery Code Quality Report (beta)

✅ Merging this PR will increase code quality in the affected files by 0.07 out of 10.

	Before	After	Change
Quality	9.25	9.32	0.07
Complexity	0.37	0.35	-0.03
Method Length	29.34	26.68	-2.66
Lines	500	557	57

Changed files	Quality Before	Quality After	Quality Change
django_codemod/visitors/init.py	8.53	8.46	-0.07 ⬇️
django_codemod/visitors/base.py	9.09	9.25	0.16 ⬆️
django_codemod/visitors/core.py	N/A	9.48	N/A
tests/test_cli.py	9.21	9.2	-0.01 ⬇️
tests/visitors/test_base.py	9.48	9.5	0.02 ⬆️
tests/visitors/test_core.py	N/A	9.73	N/A

Here are some functions in these files that still need a tune-up:

File	Function	Quality	Recommendation
django_codemod/visitors/base.py	BaseSimpleRenameTransformer.leave_ImportFrom	5.75	Split out functionality

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[codecov]

Codecov Report

Merging #123 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #123   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           17        18    +1     
  Lines          455       476   +21     
=========================================
+ Hits           455       476   +21     

Impacted Files	Coverage Δ
django_codemod/visitors/__init__.py	100.00% <100.00%> (ø)
django_codemod/visitors/base.py	100.00% <100.00%> (ø)
django_codemod/visitors/core.py	100.00% <100.00%> (ø)

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[browniebroke]

Thank you for this improvement! 🎉