Switch from blessings to colorama

This is to address windows compatibility.
A few notes:

* There's no support for bold or underline.  Will see about
  adding it later, but I've left comments in ColorizedStyler
  to remember what the original settings.
* The logic for switching to vertical tables is simplified, the
  tty checking for auto_reformatting is removed.  If we go
  over the terminal width and auto_reformat is True, the table
  is resized, period.
* Set a default width for 80.  Previously, we would not auto_reformat
  if we didn't know your term width, but now we'll default to 80
  if we can't detect term width.
Default to auto reformatting to vertical tables
Grab sys.stdout at invocation time, not import time

That colorama.init() can wrap sys.stdout on windows.
Merge branch 'windows-tables' into develop

This fixes colorized table output on windows.

* windows-tables:
  Grab sys.stdout at invocation time, not import time
  Default to auto reformatting to vertical tables
  Switch from blessings to colorama
Catch general exception for term width detection

Based on what sys.stdout is, any number of exceptions
can be raised, and we only care if we're able to determine
the width or not.
Catch exceptions during tty check

Fixes a build break where sys.stdout is a StringIO object
with no fileno attribute.
Fix typo bug in call to platform.system().
Merge branch 'develop' of github.com:aws/aws-cli into develop
Convincing setup.py to correctly install all man/text pages needed for interactive help.
Fix typo bug in handling of main help page on Windows platform.
Remove debug code from help.py.
Fixing bug in rstgen related to list params and recreating man pages and txt files.
Adding README file to explain document generation steps.
Updating man files and text files based on new service description.
Bumping version number and botocore dependency.
Move docs to awscli/doc

So we can include it as package_data
Update help to read from awscli/doc

Verified this works with pip
Merge branch 'absolute-path' into develop

* absolute-path:
  Update help to read from awscli/doc
  Move docs to awscli/doc