REL: Pre-Alpha release 0.0.1

This pull request includes updates that were necessary to make qiita usable
when installed via pip, this is a summary of the changes:

- Classifiers and documentation strings in `setup.py` have been updated.
- `setup.py` now imports and installs the resources that are needed for the website to work properly (templates, static resources, etc).
- The webserver is no longer started by running the nefarious `python qiita_pet/webserver.py`; to start the webserver simply do: `qiita webserver start`.
- The inclusion of the `webserver` subcommand into the `qiita` needed the import of the application to be done as part of the subcommand itself, therefore you will see that `from qiita_pet.webserver import Application` is not at the top of the file.
- `qiita webserver start` includes an argument to specify the port `--port`.
- The installation documentation has been updated to reflect the current status of the project.

-------------

To properly test this PR, create a new virtual environment, follow the instructions in INSTALL.md.

To emulate `pip install qiita` try:

pip install https://github.com/ElDeveloper/qiita/archive/release-0.0.1.zip

:warning: Note :warning: that I won't upload to pypi until:

1.- this PR is merged.

2.- We can get rid of this package https://pypi.python.org/pypi/qiita/0.1.1 @wasade, I think you created that, can you remove it? If that wasn't you @wasade, does anyone know about who created that?