Merge pull request #513 from douginator2000/otu

cleaning study_abstract value
Merge branch 'master' of git://github.com/qiime/qiime_web_app into otu
Merge pull request #514 from douginator2000/otu

fixing study abstract output - cleaning characters
Merge branch 'master' of git://github.com/qiime/qiime_web_app into otu
fixing study abstract output - cleaning characters