autocompile detects changes in layout_dir now

Also after each run, Acrylamid resets the count for skipped, changed
and created counters (a cosmetic issue only).
update MANIFEST and cram tests to latest commits
prepare version bump

master branch is on his way to 0.4, quick roadmap:

* has_changed implementation for Mako, #39
* i18n templates, #19
* a multilang helper, #22
Fix template caching for Mako

Acrylamids Cache would delete all files that do not explicitly end with
.cache, which is the default for jinja2.
For Mako we hack the modulename of templates to prefix them with cache_
so that we can exclude those files when shutting down the Cache.
Merge pull request #42 from moschlar/develop

Fix template caching for Mako
str.startswith can take a tuple

http://www.reddit.com/r/Python/comments/wpl1h/what_are_some_little_known_features_in_python/c5fcyfn
add 0x1cedd1ce to thanks section for his Twitter code
Add documentation for template engine variable
Fix typos in docs/conf.py.rst
Document new templating internals
Merge pull request #43 from moschlar/develop

Update documentation for new templating system
relax computation time to 0.0\d seconds
add __radd__ to helpers.link

Mako/Python could not convert it to a unicode object.
last fix for mako support, closes #39

(track changes in templates and their parents and references.
add mako to tox.ini
Merge branch 'mako-lookup'
Introduce SUMMARIZE_LINK for continue reading link

Removes the old three ``SUMMARIZE_*`` variables to allow more
customization.
Closes #44.
Merge pull request #45 from moschlar/develop

Introduce SUMMARIZE_LINK for continue reading link
same exclusion patterns for CONTENT_IGNORE as for OUTPUT_IGNORE
replace metalogo CSS to not change the line height

CSS from Wikipedia [1] used to render LaTeX in their article
and slightly modified to fit to XeTeX.

https://en.wikipedia.org/wiki/LaTeX#Pronouncing_and_writing_.22LaTeX.22