setup feature
Merge branch 'master' into develop
an asset file knows its path
Change how the asset files are run

Provide a path when calling instance_eval to make stack traces have the
correct line and file reference.

This change also solves the __END__ problem that stopped the execution
of the asset files.
allow config to be queried as a constant
updated name taken exception message
use _ instead of __ as method prefix
stating clearly which methods are deleted
setup functionality feature
defining a Config constant in the namespace
improve constant resolution
config constant in uppercase letters
define configure method when coconut is included
check the configuration for assets without properties
changelog for version 0.2.0
Merge branch 'develop'