Edited the SQL lab
Finished making changes
Merge pull request #562 from AZaitzeff/SQL

Edited the SQL lab
Made edits based on comments from Ryan and Ian from my last pull request.
Removed the matplotlib section
inserted the solutions at the end.

 with '#' will be ignored, and an empty message aborts the commit.
Modified solutions based on changing questions in lab
Overhauled stdlib lab
Merge pull request #502 from remifuhriman/GettingStarted_merge

Getting started merge
Merge pull request #565 from AZaitzeff/std

Overhauled stdlib lab