Dependency updates and cleanup

• Add missing tedious dependency
• fix eslint error
• Consolidate test setup
• Removed var variable declarations
• Update to use native promises
• Remove unused vars
• Removed dev dep on metronic
• Replaced monologue.js with EventEmitter
• Updated machina and removed postal
• Updated lodash
• Removed whistlepunk
• Replaced jshint with eslint + nyc for coverage. Goodbye gulp.
• removed unused dependencies