Merge pull request #629 from abhinavc/master

Rewritten a DB question
fixed error in question
Merge remote-tracking branch 'upstream/master'
Merge pull request #630 from adamarla/master

Type in question fixed
3 questions on Associate Rules Mining
Merge remote-tracking branch 'upstream/master'
Merge pull request #631 from adamarla/master

3 questions on Association Rules Mining
[cron-git-commit] @ 20.51
[cron-git-commit] @ 20.54
[cron-git-commit] @ 20.55
fixed typo in question
Merge remote-tracking branch 'upstream/master'
Merge pull request #632 from adamarla/master

Typo in question fixed
- added new set of latex variables {\va, \vb ... \vz} to tufte-tweaks,
  shorter and easier to use than \vbone \vbtwo etc.
- changes newcommand to renewcommand in the 3 questions
Merge remote-tracking branch 'upstream/master'
Merge pull request #633 from adamarla/master

New latex vars
4 questions
 1 more questions
Merge pull request #634 from adamarla/master

more questions
[cron-git-commit] @ 10.10