add a .gitignore file, remove .hgignore

.gitignore

@@ -0,0 +1,20 @@
+*.pyc
+*.egg
+*.so
+
+.dir-locals.el
+.ropeproject/
+TAGS
+.tags
+.tox
+.DS_Store
+sphinx/pycode/Grammar*pickle
+distribute-*
+
+env/
+build/
+dist/
+Sphinx.egg-info/
+doc/_build/
+tests/.coverage
+tests/build/

.hgignore

@@ -1,23 +0,0 @@
-.*\.pyc
-.*\.egg
-.*\.so
-.dir-locals.el
-^\.tox
-\.DS_Store$
-^build/
-^dist/
-^tests/.coverage
-^tests/build/
-^sphinx/pycode/Grammar.*pickle
-^Sphinx.egg-info/
-^doc/_build/
-^TAGS
-^\.tags
-^\.ropeproject/
-^env/
-\.DS_Store$
-~$
-^utils/.*3\.py$
-^distribute-
-^tests/root/_build/*
-^tests/root/generated/*