* Used re.split() instead of re.search() to avoid string slicing.
 * Used "".join() once instead of concatenating strings.
 * Removed the need for repeating logic on loop exit (i.e. an additional
   application of self._render_tags(template) and output += ...).

* Used re.split() instead of re.search() to avoid string slicing.
* Used one "".join() instead of repeated string concatenation.
* Avoided duplicate logic on loop exit (i.e. output += template).

The template module no longer imports from the view module.

Also added a test case.

The commit also adds a unit test for this case.

 * Template._render_partial() now calls View.load_template().

 * View.get_template() now calls View.load_template().

 * Added test case test_view.py to test View.load_template().

 * Removed trailing white space from view.py.

 * Removed trailing white space from test_view.py.

 * Template._render_partial() now passes self.view.template_extension to
   Loader.load_template().

 * The test case test_examples.test_template_partial_extension now passes.

 * Corrected the expectation of the test case test_simple.test_template_partial_extension.
   It passes under the change to Template._render_partial().

 * Removed trailing white space in test_simple.py.

Added test for spacing around section tags on a single line. Fixed the problem indicated by the test: a section's contents were being left trimmed.

This will allow the namesapce to provide information about
whether something is to be escaped or not.