minor layout fixes
fix for issue raised in https://github.com/waterbearlang/waterbear/issues/454#issuecomment-33188036
Merge pull request #498 from waterbearlang/454_broken_iframe

fix for issue raised in https://github.com/waterbearlang/waterbear/issue...
fixed certain sockets loading defaults on file open
minor fix on reloading
Add gcd and lcm blocks
Merge branch 'master' into math