Small tweaks to tooltip bubbles and browser foreignObject bug detection.

• Update packages. 7472903
• lintify 42d18fd
• Correct div in FO bug detection code. This gets rid of the magic constant of 2. Change algo and Safari might not be good anymore. f07aef0
• Change the rounding radius to just scale with the smallest dimension for the bubble. 9be4eab
• Tooltip bubble (a path) seems to be a bit better when stroke width is an integer. 3f267b6
• Make path joins a bit crisper. 7495f94

v0.1.1...v0.1.2