Bumped version and updated changelog.
Added date to changelog.
Updated travis config generator to use 'highest possible patch version' for comparison (fixes #62)
Added composer self-update
Bumped version number and updated changelog.
Merge branch 'release/1.0.0-alpha.2'

Conflicts:
	CHANGELOG.md
	lib/Icecave/Archer/Console/Application.php
	test/suite/Icecave/Archer/Console/ApplicationTest.php