Improve layout of option buttons

[AndrewCRMartin]

The buttons:

Sort, Delete Selected, Process Sequences, Export Select, Colour Scheme, Dotify and Do not colour dots

are poorly formatted on Safari and Chrome.

They are white on white and all right next to each other without any aesthetic spacing. Suggestions

• Better spacing
• Clearer line around outside of boxes
• Perhaps use Abysis blue for Process sequences
• Simplify text: Sort, Delete, Export and Process should be sufficient

ALSO move Process to be the last button.

[AndrewCRMartin]

• Spacing fixed
• Line around boxes is defined by JQuery-UI so we can't change it easily
• CSS now set up to allow individual boxes to be styled differently
• Options now available to set the text
• Order of buttons changed