TST: make egginst main function testable +  simple install/remove test.
TST: add test for scripts.get_executable.
TST: test entry points rewriting.
TST: add tests for entry_points.
TST: add a simple test for PROXY-type proxies.
MAINT: fix tox.ini to execute all our tests.
MAINT: forgot to update travis-ci for new egginst tests location.
DOC: start enstaller documentation.

We use sphinx for documentation, and added a skeleton of documentation
for our egg format. We've only documented the proxy/soft-linking stuff
for now.
DOC: EGG-INFO files now mostly documented.

We also added kenneth reitz templates to have an html that looks decent
by default.
DOC: tweak doc to address review comments.
TST: one more test for directory-like entries in proxies.
TST: add some basic tests for legacy soft link on Posix.
Merge pull request #112 from enthought/document_egg_format

Document egg format
TST: start testing egginst.object_code.

We only add a simple test for get_object_code.
TST: add a test to ensure fix_object_code does not touch non-legacy libs.
REF: explicitly mention we only have tests for mach-o ATM.
BUG: fix travis-ci setup.
TST: add one test for egg's target.dat hack.
TST: add test for fix_object_code with targets.dat hack.
TST: add simple test for the sane but yet unused rpath rewriting.