Update default config to match current behavior.

Having the extra prefix is confusing to people.

Refs #215
Invalidate build cache including behavior to prevent timestamp being cached before build is compiled.
Merge branch 'master' of github.com:bigfishtv/asset_compress
Check for a valid timestamp before finalizing.
Add tests for invalidate and finalize methods.
Merge pull request #217 from bigfishtv/master

Don't overwrite cache timestamp until after build has been compiled and saved.
Bump version number.
First pass at making TMP files for build outputs.

Instead of sending headers which can easily be ignored, store build
results in TMP. These build outputs can easily be re-used until their
components change.

Refs #218
Trim down variables.

Use local vars to require fewer array offset calls.
Write built resources so they can be read later.
Add tests for build output caching.

Add tests to ensure build output is stored on disk for future use.
Have console tool clear new temporary cache files too.

The clear command should clear all the temp files too. Its only polite
really.
Merge pull request #213 from coryjthompson/master

#150 Added functions inlineCss and inlineScript to allow a build inline.
Update changelog for new feature.
Fix clearing of assets with multiple `.` in them.

If asset filenames had multiple `.` in them the target names would be
incorrectly generated. Use the existing regex to pattern match names
better.

Fixes #221
Merge branch 'master' into cache-builds
Tweak how development cache files work.

* Put files in cache/asset_compress.
* Don't store cache files with timestamps. Having timestamps on
  makes finding files later a pain.
Merge pull request #219 from markstory/cache-builds

Cache build outputs
Fix whitespace.
Fix clean() it should hit temporary build files as well.