Merge branch 'interact-patch' of https://github.com/kramer314/sagenb …

…into alexinteract

DS_Store files should not be included in the spkg

Mercurial should ignore the .gitk-tmp* directories coming from the cs…

…s processor

Don't include git stuff when making the spkg

Up the limit for new collaborators on a worksheet to adding 500 colla…

…borators at a time.

Dependencies were being copied to the wrong place, and fetch_packages…

… was returning a string instead of a list of dependencies

Update the twisted dependency version number

link after deleting data file points to original worksheet.

Trac #7002: Fixes minor documentation about %auto in notebook

Trac #11282: #11282: Add a link from the main live documentation help…

… page to the thematic tutorials document