Modify "method: get" of WeedOperation.

  Change default Parameter
  "just_url" to False and add Parameter "just_content"(defaults to
  True).

  So,
    when you do "get" by default, you will get file content as normally expected;

    set "just_url" to True you will get an object of WeedResponse
    whose "property: fid_full_url" can serve as a full url for
    backend servers like nginx, ...;

    set "just_content" to True will just return the file's content
    else will return a full object of requests.Response(includes all
    info, like content-type, headers, ...)

	modified:   .gitignore
	modified:   Makefile
	modified:   changelog.rst
	modified:   dist/python-weed-0.1.3.tar.gz
	new file:   dist/python-weed-0.1.4.tar.gz
	modified:   test/test_opensource_logo.jpg
	modified:   test/test_weed.py
	modified:   weed/operation.py
	modified:   weed/version.py
Merge branch 'master' of https://github.com/darkdarkfruit/python-weed
release v_0.1.4