Adds max_attempts field to line construction sequences

This is the authoring-app side of [#42915745] - it lets authors add this field to activities in Hobo.
Only run Google Analytics page views on production

This is for [#43732479]
Slightly more elegant way of shutting off GA

Following up on [#43732479]. This method lets a developer turn tracking back on by changing the "false" value to "true" in developer tools.
Shutting off Analytics in authoring runtime, too

[#43732479]
Add "give up" prompt to LineConstructionSequence

[#42915745] This is implied by the max-tries story - there should be a prompt to provide the text when the user has run out of tries, because the "all incorrect" prompt implies that the user should keep trying.
Updating generator for LineConstruction MaxTries

[#42915745]
Stopping tracking for runtimes in staging. (Don't merge this into production.)
Merge branch 'master' into staging