Add '#' to constant NON_REWRITEABLE_URL

Pipeline was ignoring HTML anchor tags as valid URLs, and would erroneously prepend a relative directory path to the anchor tag.

This fix adds the octothorpe (#) to the constant NON_REWRITEABLE_URL to allow the anchor tag to be ignored as a valid URL link.

Update installation.rst

Let pipe lessc output to outfile rather than providing outfile arg due to lessc bug

Makes it work with bootstrap 3. See http://stackoverflow.com/questions/28475730/compiling-bootstrap-less-shows-errors-warnings

PipelineFinder.list should always return empty list

Add missing ignore_pattern to FileSystemFinder.

Include quotes in NON_REWRITABLE_URLS

Added sophicware to the list.

Remove tempdir storage location

Make the SASS compiler compatible with libsass-python

https://github.com/cyberdelia/django-pipeline/issues/394

TL;DR Setting a default location like this causes breakage and isn't the
responsibility of `PipelineMixin`

Use the new build env on Travis

faster vms, more ram, more cpu, better boot times, awesome network

docs coming soon