WAIL v0.2019.05.21

• Bundle latest OpenWayback version 2.4.0 (#419)
• Fix elements of WAIL's Heritrix UI from being smooshed together (#395)
• Replace old WAIL logo in OpenWayback replay (#353)
• Refactor Heritrix UI to be more vertically consistent (#420)
• Fix Linux issue where jobs listbox in Heritrix panel would not span whole column if empty (#400)
• Fix crash when right-clicking on whitespace in Heritrix jobs listbox (#430)
• Add option to rebuild and launch Heritrix crawls from WAIL UI (#392)
• Tweak Windows build (upcoming release) to have more consistent access to OpenWayback and Heritrix web UIs (#435)
• Fix issue of being unable to start Heritrix in upcoming Windows release (#398)