Add test for the case where we try to read a file with an unhandled extension
Explicitly set locale when generating test output
Adds Rackspace Cloud Files support to quickstart and fabfile
Improve AsciiDoc parts of Getting Started docs
Don't warn too loud about missing dependencies.

- Show the messages only once for each Reader
- Decrease the logging level
Merge pull request #1020 from saimn/readers

Don't warn too loud about missing dependencies.
Work around pytz & pip 1.4+ problem. Fixes #996.

The latest version of pip (1.4) no longer installs pre-release versions
(alpha, beta, etc.) by default. Because pytz uses an unorthodox version
number scheme, pip thinks it's a pre-release and skips it. This
change to setup.py should alleviate the problem until it is otherwise
resolved.
Receive the two values returned from get_instance()

`get_instance()` returns two values. Old code, instead of unpacking two
values in two variables, placed the tuple in a single variable
`pelican`.

Later in the same block when `pelican.run()` was called, it resulted in
error.

```
-> Modified: content, theme, settings. re-generating...
CRITICAL: ("'tuple' object has no attribute 'run'",)
CRITICAL: 'tuple' object has no attribute 'run'
Traceback (most recent call last):
  File "/Users/talha/Repos/VirtualEnvs/pelican-dev/bin/pelican", line 8,
  in <module>
    load_entry_point('pelican==3.3', 'console_scripts', 'pelican')()
    File
    "/Users/talha/Repos/VirtualEnvs/pelican-dev/lib/python2.7/site-packages/pelican-3.3-py2.7.egg/pelican/__init__.py",
    line 353, in main pelican.run()
```

Either the returned value should be unpacked properly or
`pelican[0].run` should be called.
Fix a typo in the docs

getpelican/pelican@f2d6f77462976f5ea291481cba40e041d42d9e8c changed
`article_generate_context` to `article_generator_context`. This commit
updates the docs to reflect the change.
Merge pull request #1032 from talha131/fix-docs-typo

Fix omitted signal name change in docs
Activate coveralls.io support
Fixing #1038 by allowing nice URLs.
Tag Cloud made functional
Merge pull request #1041 from shabob/tagbranch

Enhance tag cloud docs
Merge pull request #1031 from talha131/bugfix-autoreload-doesnt-work

Fix for a bug that will make autoreload fail
Merge pull request #929 from nicholaskuechler/cf_support_for_quickstart

Adds Rackspace Cloud Files support to quickstart
StaticGenerator now stores file list in context.

This allows plugins and other generators to easily add files to be
simply copied over.
Merge pull request #1049 from kenmazy/BetterStaticGenerator

StaticGenerator now stores file list in context.
Merge pull request #1040 from ssbarnea/master

Fixing #1038 by allowing nice URLs.
Merge pull request #1014 from dbrgn/test_output_locale

Explicitly set locale when generating test output