Merge branch 'release/1.0.3'

* release/1.0.3:
  Bumping version numbers.
  Changelog for 1.0.3.
  Reset file pointer before opening image. Fixes #47
  Rename `_create()` to `generate()`
  AutoConvert processor
  Smarter transparency handling
  Change how we set `ImageFile.MAXBLOCK`
  RGBA is a transparent image mode too . When saving RGBA, you cannot specify 'transparency' color - you get IOError wrong mode.
  Increase MAXBLOCK on save failure
  avoid Transpose to crash when there is no exif data
  Try to better handle being passed a open file with write mode enabled
  `format_to_extension` correctly handles `None` arg
  Proper handling of empty images and missing fields
  Fixes error message
Merge branch 'release/1.1.0'

* release/1.1.0: (28 commits)
  Adding (crude) changelog information for 1.1.0.
  Bumping the version number.
  Removing Pillow from requirements.txt and adding a note about PIL/Pillow to the README. References #72.
  Being a bit friendlier to Python 2.5 users... or is it 2.4. Fixes #82.
  Change handling of spec deletion
  No need to check for None
  Catch KeyError on image.info dictionary
  Using difference instead of subtract
  Indentation tweak
  Makes evaluation of `source_file` lazy
  Test illustrating #75, #74
  Separate create_photo method
  avoid Transpose to crash when exif data doesn't exists
  Allows `None` value for `processors` argument
  Remove _Resize class
  Adds crop module to docs
  Explicitly import crop module
  Renames processor to `TrimBorderColor`
  Gives precedence to user options
  Replaces `quality` argument with `options` dict
  ...
Merge branch 'release/2.0'

* release/2.0: (127 commits)
  IKContentFile accepts format hint
  Additional mimetype utils
  Don't get extension of empty filename
  Tell people to import fields from the models module
  Refactored AutoConvert into prepare_image
  Docstring for save_image
  Kill PIL's chattiness; fixes #91
  PIL bug workaround
  Use StringIO instead of temp file
  Extract reusable save_image function
  Rename SpecFile and move it to utils
  Extract suggest_extension util from generator
  Woah, globals
  Add SpecFile.__unicode__
  Introduction to image cache backends
  Some changelog corrections
  Spelling error.
  Intial pass of the 2.0 release notes.
  Bumping an version number.
  delete file before re-generating it to avoid ill named file
  ...
Changelog update.
Bumping the version number.
Merge branch 'release/2.0.1'

* release/2.0.1:
  Bumping the version number.
  Changelog update.
  Do not leak file descriptor
  Changelog link.
  Adding @jezdez to AUTHORS.
Merge branch 'release/2.0.2'

* release/2.0.2: (25 commits)
  Changelog for 2.0.2.
  Bumping the version number.
  Change assertRaises for Python 2.6 compatibility
  Test correct versions of Django
  Fix docs typo; closes #147
  fix API documentation
  Change how signals are used
  Add __init__ to Reflection processor; closes #141
  Add Google Group to README
  Use django-appconf
  Allow callables for AdminThumbnail image_field arg
  Whoops! Messed that up.
  Code blocks.
  Fix pickling of ImageSpecFieldFile
  Create failing test to illustrate #97
  Remove unused stuff
  Derp, forgot to change the tox command.
  add irc channel to docs and README
  Adding a travis-ci configuration file.
  Adding basepython to the tox directives.
  ...

Conflicts:
	docs/changelog.rst
	docs/conf.py
	imagekit/__init__.py
Re-open source file on ValueError in ImageSpec.generate()
Use DEFAULT_FILE_STORAGE by default

As raised in #203, if `IMAGEKIT_DEFAULT_FILE_STORAGE` isn't set,
`DEFAULT_FILE_STORAGE` should be used.
Merge pull request #204 from danxshap/close_file_fix

Re-open source file on ValueError in ImageSpec.generate()
Canonicalize sets and dicts before hashing
Add a build status image to the README. Fixes #206.
Bryan, we use reST. >_<; Refs #206.
Sanitize cache keys for memcached

Closes #208
Fix invalid char range
Add test for memcached key sanitation
Added caching docs
moved models in front of source groups in the advanced docs
Merge branch 'canon-pickle' into develop
Merge branch 'saulshanabrook/revise-docs' into develop