Merge pull request #15 from birarda/master

fix call to GlobalData getInstance before ready
Merge pull request #16 from birarda/master

more repairs to StackManager instantiation
Merge pull request #17 from birarda/master

fix for assignment client restart after new content set download
add space to content sets
change content set styling for 3
update size of content set page
Merge pull request #18 from birarda/space-set

add space to content sets
fix bug for fresh StackManager install
fix one of the signal/slot arguments