Bumped up project panel secondary text contrast.
Desaturated project-panel-text-2 color based on peterflynn's feedback.
Merge branch 'master' of https://github.com/adobe/brackets into larz/project-panel-text-contrast
Merge branch 'larz/project-panel-text-contrast' of https://github.com/adobe/brackets into larz/project-panel-text-contrast
Merge pull request #3910 from adobe/larz/project-panel-text-contrast

Larz/project panel text contrast