Introducing Analytics!

• refactor: save flags to variable instead of function constructing it each time. dbec2fe
• fix: report error message param, not raw message. c95b717
• feat: improve tracking events, add Google Analytics tracking ID. 3bee2b8
• feat: update Google Analytics tracking code. 35af67a
• feat: track key events during generator process. e049dfa
• chore: add insight dependency. b934972
• outline: highlight key points where collecting certain metrics may be valuable. 2e7710f
• refactor: remove unnecessary variable. af828d6

v0.2.2...v0.3.0