(issue #516) clean up commented codes and todo usages

[pyitphyoaung]

Description of changes

This PR cleans commented codes and TODO usages.

Cleaned TODO notes and related sources for backlog update (if any)

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SOURCE: config/webpack.config.dev.js AND config/webpack.config.prod.js

// TODO: Disable require.ensure as it's not a standard language feature.
// We are waiting for facebook/create-react-app#2176.
// { parser: { requireEnsure: false } },

SOURCE: src/scenes/home/families/jumboQuote/jumboQuote.js

// TODO: Ditch bluebird promise for axios to drop a dependency
// TODO: Is there a need to move the quotes to a back-end API endpoint, or should we just bail on the promise-based API request idea for this data?

SOURCE: src/scenes/home/history/timelineEvent/timelineEvent.js

// TODO: Force eventTitle to Title case with Regex

SOURCE: src/shared/utils/cookieHelper.js

// TODO we could validate the signature as well (issue#281)

Issue Resolved

Fixes #516

[kylemh]

Sweet! I've added issues for the TODOs that were undocumented.