Merging Josh's readlines() and test suite fixes into master.

Merge remote-tracking branch 'upstream/master'
Merging new tests.

Merge remote-tracking branch 'upstream/master'
Merging most recent changes.

Merge remote-tracking branch 'upstream/master'
Merging most recent changes.

Merge remote-tracking branch 'upstream/master'
Merging changes on 5/3.

Merge remote-tracking branch 'upstream/master'
Merging Kaitlin's grammar fixes.

Merge remote-tracking branch 'upstream/master'
Merging Chris's changes.

Merge remote-tracking branch 'upstream/master'
Merging readme changes.

Merge remote-tracking branch 'upstream/master'
added tutorial tests, fixed hello.svel test.
Merge pull request #73 from JALsnipe/master

Added tutorial tests