properly package grammar sources

Author: bollwyvl

MANIFEST.in

@@ -4,10 +4,8 @@ prune doc/_build
 recursive-include examples *.py README
 
 include sympy/utilities/mathml/data/*.xsl
-include sympy/parsing/latex/*.g4
-include sympy/parsing/latex/_antlr/*.tokens
-include sympy/parsing/latex/_antlr/*.interp
-include sympy/parsing/latex/LICENSE.txt
+
+recursive-include sympy/parsing/latex *.g4 *.tokens *.interp *.txt
 
 include LICENSE
 include TODO

setup.py

@@ -385,6 +385,8 @@ def run(self):
           package_data={
               'sympy.utilities.mathml': ['data/*.xsl'],
               'sympy.logic.benchmarks': ['input/*.cnf'],
+              'sympy.parsing.latex': ['*.txt', '*.g4'],
+              'sympy.parsing.latex._antlr': ['*.interp', '*.tokens'],
               },
           data_files=[('share/man/man1', ['doc/man/isympy.1'])],
           cmdclass={'test': test_sympy,