update version in README.
add ruby 1.9.3 requirement.
prefer single quotes.
override default inspect behavior.
add to_h to JournalEntry
appease rubocop overlord.
upgrade dev dependencies.
add some missing documentation.
return nil if no timestamp data provided.
default to moving forward one entry for move()
use format() instead of % operator.
update examples for machine_id and boot_id
alias Systemd::Id128.machine_id/boot_id to Systemd.machine_id/boot_id
upgrade development dependencies.
update README.md
add newline to end of license.
add a few basic specs for Waitable module.
add basic specs for machine_id/boot_id/random id128.
force pending spec to always fail.
try to keep travis happy.