makefile: added standard makefile

tests: refactor TestINI to different name so it doesn't confuse pytest.

packaging: moved tests into the main library itself. This is consistent with how our other projects do it.

hgignore: adde .eggs folder generated during new packaging.

release: merge back stable branch into default

Added tag v4.5.1 for changeset 668e5c656f61

release: Finish preparation for 4.5.1

release: updated pip2nix output for 4.5.1

release: Start preparation for 4.5.1

error-handlig: pass in Abort exception info to RhodeCode from vcsserver.