Merge pull request #4 from paazmaya/master

merge
task links added
Merge pull request #2 from paazmaya/master

Merge
Added tasks 9-1 and 9-2
Added tasks 7-1 and 7-2
Added a link to MongoDB presentation
Fixed --set-upstream and its shorthand version command from task 2.
Merge remote-tracking branch 'upstream/master'
Merge pull request #155 from tuunanen/master

Fixed --set-upstream and its shorthand version command.
Merge pull request #152 from Markoham/master

task links added
Merge pull request #153 from mpiivonen/master

Links to tasks added and link to MongoDB presentation added
Merge pull request #154 from HeikkiAlanen/master

OWASP Node js Goat Project
Merge pull request #3 from paazmaya/master

Merge
A link to task 4-2
Added task 8-1
JavaScript under pressure game steps as exercises
Links
Merge pull request #4 from paazmaya/master

Merge
Merge pull request #156 from mpiivonen/master

Added task 9 and something else