add new exif.py to abstract between different exif libraries, and add partially working support for pyexiv2 and EXIFpy

fix breadcrumb/title stuff

configuration magic - can now load configuration data from ./degal.cfg, --config, folder/degal.cfg

implement concurrency... :)

fix Thumbnail.size logic, s/if/elif/

rename Image.pil_image -> Image.img, and shave off ~30ms per image by using Image.resize instead of Image.copy/Image.thumbnail

fix use of handle_error in command.py

fix commands.main to force-render thumbs if asked to

only load the resources/pkg_resources stuff if needed - slight optimization for importing without referencing the stylesheet

make loading exif metadata optional

remove unused settings.py

backout config.read_only as a useless feature

relocate the new exif module to lib/, as it's not really part of degal as such

change exif.py:main to take multiple paths

add support for sub-IFDs, kind of hacky

refactor exif_data to use a Tag class for each tag, instead of a magic tuple

tidy up exif_data a bit

new exif.py seems to work now, although still missing sub-IFDs

initial exif.py code

split --force-update into --force-thumb/--force-html options, implement for main

fix folder_page template

add default title for folders

modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls

implement simple stat caching using lazy_load for filesystem

fix LazyProperty to not inherit from property, so as to act as a non-data descriptor, which can then be overriden by per-instance __dict__ values

fix Thumbnail.stale/File.older_than behaviour

slightly reoriganize function structure in commands.main

fix File.newer_than/File.older_than to correctly handle None

move Command exception handling into command.py, and handle KeyboardInterrupt

change Image.update to unconditionally update the thumb/preview

fix Folder.subdirs

add task_threads config setting

initial implementation of threaded rendering of a folder's images

implement up-to-date checking for commands.main, and add --force-update option

remove obsolete req.py

move thumbnail rendering from render.py to thumbnail.py, and implement staleness checking for Images, plus index_images for Folder

change utils.LazyProperty to store the cached value using obj.__dict__

fix templates to show thumbnails on folder template

fix Gallery.stylesheet to actually copy it into place

misc. format.py formatting bugs

fix html to have a separate Container type, but also special-case tuples, lists and genexps

fix filesystem.Path.path_segments and add some doctests

fix html/templates to use a Container type (inherited by Tag) for flat lists of tags

misc. fixes, it runs now, but HTML output is corrupt (no flattening)

misc. fixes

fix utils.LazyProperty

remove old templates

misc. stuff in gallery.py utils.py

use new command/gallery stuff in main.py

remove old log.py module

remove old Folder, Image code, wrap up both

add render_file method for html.IRenderable

add open_write method for filesystem.File

add log_level config setting

implement new main() command, remove old one

initial commands infrastructure

begin implementation of folder, gallery

update resources.py

write new templates using html, replacing old mako stuff

rework html a bit to move the render_* funcs to IRenderable, add XHTMLDocument (ugh), missing flatten