Allow download of individual collections and fix a few typos
Merge pull request #8 from geoffreyanderson/issue6

Allow download of individual collections and fix a few typos
added filters for mutexstatus2 and stacktrace files (fixes #10)
updated README with correct mysql user permissions (fixes  #15)
removed unused variables in index view (fixes #16)

just a bit of copypasta, generates warnings, but that
causees errors on some systems.
unreachable statement
Fixed html link
Fixed typos
Merge pull request #17 from pborreli/typos

Fixed typos
Update license, copyright, and contribution guidelines