Enable absolute paths for view template files

This is mainly to guarantee that fixture tests won't break.
Fix return values of inherited methods when cloning

These will now return values of invoked parents by default unless the value
is definitely known to be void.
Force replacement of files with generate:fixture --refresh
Add Generator_Builder::globals() method

This simplifies the code and makes testing easier, among other things.
Fix quoting of values with reserved characters for fixtures
Fix doccomment
Remove redundant render() method
Tweak Generator_View absolute path check
Add expand_path(), get_config(), get_message() to Generator_Builder
Add --import option for generate:config and generate:message
Clarify Generator_Builder::get_config() code
Fix tasks help info
Set version to 1.1
Merge branch '3.3/develop' into 3.3/master