Merge pull request amqp-node#630 from squaremo/release-0.8.0

Update package version and changelog for v0.8.0

Merge pull request amqp-node#609 from squaremo/release-0.7.1

Bump version and changelog for v0.7.1

Bump package version to 0.7.0

A new minor version because the node engines supported has
changed. Also changed the node engine versions claimed as supported,
in the README.

Signed-off-by: Michael Bridgen <mikeb@squaremobius.net>

Tag for version 0.6.0

Merge pull request amqp-node#572 from squaremo/release-0.5.6

Bump to v0.5.6

Release 0.5.5

Release 0.5.4

Merge pull request amqp-node#475 from squaremo/prep-v0.5.3

Prep v0.5.3

Update for v0.5.2

 - update changelog with PRs since last release
 - more supported versions in README
 - package version bump

Tag for release v0.5.1