Rename initialize.py to jedi_vim_init.py

Ref: https://github.com/davidhalter/jedi-vim/issues/726#issuecomment-320505021.

jedi_vim_init.py

@@ -0,0 +1,26 @@
+"""Python initialization for jedi module."""
+
+try:
+    import traceback
+except Exception as excinfo:
+    raise Exception('Failed to import traceback: {0}'.format(excinfo))
+
+try:
+    import os, sys, vim
+    jedi_path = os.path.join(vim.eval('expand(s:script_path)'), 'jedi')
+    sys.path.insert(0, jedi_path)
+
+    jedi_vim_path = vim.eval('expand(s:script_path)')
+    if jedi_vim_path not in sys.path:  # Might happen when reloading.
+        sys.path.insert(0, jedi_vim_path)
+except Exception as excinfo:
+    raise Exception('Failed to add to sys.path: {0}\n{1}'.format(
+        excinfo, traceback.format_exc()))
+
+try:
+    import jedi_vim
+except Exception as excinfo:
+    raise Exception('Failed to import jedi_vim: {0}\n{1}'.format(
+        excinfo, traceback.format_exc()))
+finally:
+    sys.path.remove(jedi_path)