Added toString and fromVersionString
User can do version selection now. The interactivity of version changes
on the preference page needs improvement
Using tooltips instead of labels for the description, shortened combo
box entries (together that should reduce the minimum width of the
preference page)
Using equals instead of == or the Custom style will never be detected
Allowing negative values in integer options
Forgot to use the options array with added default option
Extended version regex (hopefully fixes #2)
Changed version to 0.0.3