Added current and parent dir to ERL_LIBS.

This should make using (include-lib ...) easier.

Addresses issue #105.
More conversions from lunit to ltest.

This should finish addressing issue #104.
Added erl check at top of Makefile.

This addresses issue #101.
Changed README from rst to Markdown.

This addresses issue #100.
Bumped to version 1.2.0.
Updated unit tests.
Updated lfetool.
Updated to latest ltest.

The latest release of ltest adds support for the missing 0-arity
functions needed by lfetool when getting the beams for unit, system, and
integration tests.
Fixed lfetool so it runs ltest unit tests.

This addresses issue #103. However, there is still a problem:
 * The tests run fine when lfetool is copied into the project directory and is
   modified to only ever run the unit tests (i.e., comment out the "run" call
   and instead substitute a "only_run_unit_tests" call).
 * The tests do *not* run (Erlang badmatch error) when a project is newly
   created.
Fixed bad copy/paste.
Updated the script.