v0.3.0

This is just the highlights, there have been a bunch of changes!

IMPROVEVEMENTS:

• Some AppRole support [GH-77]
• Response Wrapping [GH-85]
• AWS EC2 stuff [GH-107], [GH-109]

BUG FIXES

• Better handling of various error states [GH-79], [GH-125]

Thanks to @ianwestcott, @s3u, @mracter, @intgr, @jkdihenkar, @gaelL,
@henriquegemignani, @bfeeser, @nicr9, @mwielgoszewski, @mtougeron
for their contributions!