Resolved issues.

- #1129 Message boxes v1.0: modify backgrounds, help-icon & help-text color and remove text-shadows.
- #1131 New color links on a:link and a:visited.
- #1133 Rename sizes.
- #1134 Color property for :active status on links with ch-btn class is missing.
- #1135 Validation bubble height should be the same as the input.
- #1136 Modal: Remove 'ch-hide' class name from underlay.
- #1139: Wizard: Update component styles.