Remove the style attribute if main is not larger than glue

The natural height of glue will determine what the proper
scrolling behavior should be at this point.
Consistency in operator spacing in setup_spine function
Use <= directly rather than opposite ternary
Use double quotes around strings
s/foucs/focus
this completes the fix for scroll bug

sets a min-height so that the natural functionality of the browser goes
back into play
the style should be checked for before removal
quick commit for viewing
Merge pull request #153 from washingtonstateuniversity/bug-scroll

[PR] Update handling of navigation during scroll