Fixed typo in google analytics lab.
Some more spacing and typo fixes in the PageRank lab.
Added docstrings and empty function declarations to match updated problems
in the PageRank lab.
Removed an unnecessary argument in a function signature.
Fixed a bug in the b-spline solutions.
Modified complex intro solutions to make them more suitable for testing.
Various fixes to the complex numbers solutions file.
A few small edits to the solutions to the Arnoldi lab.
A clarification suggested by a student.
typo fix.
typo fix.
typo fix.
Another typo fix.
Another typo fix.
typo fixes.

Conflicts:
	Algorithms/Splines/bsplines.tex
more typo fixes
Merge pull request #555 from insertinterestingnamehere/typos

Typos