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
Mke error page nice and log errors using logger
Add back button to text_file.html
remove if statement for logging
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
rename initialize.sql -> patches/0.sql and avoid code duplication on rebuilding the test database
Adding the environmental packages to the database
Change study_id to preprocessed_data_id in ebi