Move tests to root dir

In essence, tests are not an importable submodule anymore but an
independent piece of code that won't be installed in a user's
site-packages directory.

.travis.yml

@@ -6,4 +6,4 @@ python:
 # command to install dependencies
 install: "pip install -r requirements.txt --use-mirrors"
 # command to run tests
-script: python lesscpy/test/__main__.py -v
+script: python test/__main__.py -v

MANIFEST.in

@@ -2,3 +2,4 @@ include LICENSE
 include README.rst
 include requirements.txt
 include tox.ini
+recursive-include test *

setup.py

@@ -22,14 +22,9 @@ setup(
               'lesscpy/lessc',
               'lesscpy/lib',
               'lesscpy/plib',
-              'lesscpy/scripts',
-              'lesscpy/test'],
+              'lesscpy/scripts'],
     scripts=['bin/lesscpy'],
     install_requires=["ply"],
-    package_data={'lesscpy': ['lesscpy/test/css/*.css',
-                              'lesscpy/test/css/issues/*.css',
-                              'lesscpy/test/less/*.less',
-                              'lesscpy/test/less/issues/*.less']},
     license=license,
     long_description=long_description,
 )