Remove LS internal gem server
Switch to minitest
Whitespace and test require fixups
Imprint::Tracer.get_trace_id returns -1 when there is nothing set
Introduce Imprint::Tracer.insert_trace_id_in_message
Add logging of trace initiated event
Whitespace
Use minitest mocks and jettison mocha
Add Glenn's doc updates
More LS fixes
Bump version to 1.4.0 prior to release
Fix description of trace logging
Merge pull request #3 from livingsocial/minitest-and-other-upgrades

Minitest and other upgrades