Modifications to the TTPac color scheme

Modifications to the TTPac color scheme

Tweaked the buttons, gradients, etc. in TTPac to eradicate the blue/grey elements.

Began with the Evergreen Logo's official color (Pantone 340 as found at http://www.georgialibraries.org/lib/pines/evergreenlogo/)
and complimented the colors accordingly, replacing dark blues with dark greens, light blues with light greens, etc.

This also adds two new selectors in styles.css to control the logo placement.  Logos were also centered on the page, rather than being crowded
into neighboring elements.

Signed-off-by: Michael Peters <mrpeters@library.in.gov>