Refactoring, Again :)

Added some more notes about how this is working on the documentation. I do think
that the overall structure is clearer now, and easiest to understand. After all,
that's how it should always be !

--HG--
rename : pelican/processors.py => pelican/generators.py
rename : pelican/generators.py => pelican/writers.py

bin/pelican

@@ -1,38 +1,3 @@
 #!/usr/bin/env python
-import argparse
-
-from pelican.generators import Generator
-from pelican.processors import (ArticlesProcessor, PagesProcessor, 
-                                StaticProcessor, PdfProcessor)
-
-parser = argparse.ArgumentParser(description="""A tool to generate a
-static blog, with restructured text input files.""")
-
-parser.add_argument(dest='path',
-    help='Path where to find the content files')
-parser.add_argument('-t', '--theme-path', dest='theme',
-    help='Path where to find the theme templates. If not specified, it will'
-         'use the default one included with pelican.')
-parser.add_argument('-o', '--output', dest='output',
-    help='Where to output the generated files. If not specified, a directory'
-         ' will be created, named "output" in the current path.')
-parser.add_argument('-m', '--markup', default='rst, md', dest='markup',
-    help='the markup language to use. Currently only ReSTreucturedtext is'
-          ' available.')
-parser.add_argument('-s', '--settings', dest='settings',
-    help='the settings of the application. Default to None.')
-
-
-if __name__ == '__main__':
-    args = parser.parse_args()
-    markup = [a.split()[0] for a in args.markup.split(',')]
-
-    generator = Generator(args.settings, args.path, args.theme, 
-                          args.output, markup)
-
-    processors = [ArticlesProcessor, PagesProcessor, StaticProcessor]
-    if generator.settings['PDF_PROCESSOR']:
-        processors.append(PdfProcessor)
-
-    generator.run(processors)
-    print "Enjoy !"
+from pelican import main
+main()