Remove HTML comment
Use chosen with multiselect for previous raw data
Add files property to PreprocessedData class
Add webserver entry for PreprocessedData summary
Add simple template for displaying text files
Add raise_error parameter to check_access
Minor: Fix docstring
Add PreprocessedData summary
Merge branch 'master' of https://github.com/biocore/qiita into download_demux-issue-533
flake8 minor fix
Merge branch 'master' of https://github.com/biocore/qiita into download_demux-issue-533
Remove RawData.files property

RawData.get_filepaths() already did what I wanted, but the docstring was
misleading; I corrected the docstring.
Use get_filepaths instead of files property
Add back button to text_file.html
Merge branch 'master' of https://github.com/biocore/qiita into download_demux-issue-533

Conflicts:
	qiita_pet/handlers/study_handlers.py
	qiita_pet/templates/study_description.html
Merge branch 'master' of https://github.com/biocore/qiita into download_demux-issue-533

Conflicts:
	qiita_pet/handlers/study_handlers.py
	qiita_pet/handlers/upload.py
Use integer to instantiate Study object

Using the str coming from the handler was causing the ID to be a str, when
we want the Study.id to always be an integer
Merge pull request #580 from adamrp/download_demux-issue-533

WIP: Download demux issue 533