Try to fix Mac OS X builds on Travis CI*

(I'm wondering whether an up to date pip will use a binary
 wheel where pip-accel might rather compile from source)

.travis.yml

@@ -17,10 +17,9 @@ matrix:
   - os: osx
     language: generic
 install:
-  - scripts/travis.sh pip install pip-accel
-  - scripts/travis.sh pip-accel install coveralls
-  - scripts/travis.sh pip-accel install --requirement=requirements-checks.txt
-  - scripts/travis.sh pip-accel install --requirement=requirements-tests.txt
+  - scripts/travis.sh pip install coveralls
+  - scripts/travis.sh pip install --requirement=requirements-checks.txt
+  - scripts/travis.sh pip install --requirement=requirements-tests.txt
   - scripts/travis.sh LC_ALL=C pip install .
 # The `make test' command below is run under `sudo -E' to enable
 # the test suite to read /var/log/syslog on Travis CI workers.

Makefile

@@ -1,7 +1,7 @@
 # Makefile for the `coloredlogs' package.
 #
 # Author: Peter Odding <peter@peterodding.com>
-# Last Change: November 1, 2016
+# Last Change: December 15, 2017
 # URL: https://coloredlogs.readthedocs.io
 
 WORKON_HOME ?= $(HOME)/.virtualenvs
@@ -29,8 +29,7 @@ install:
 	@test -d "$(VIRTUAL_ENV)" || mkdir -p "$(VIRTUAL_ENV)"
 	@test -x "$(VIRTUAL_ENV)/bin/python" || virtualenv --quiet "$(VIRTUAL_ENV)"
 	@test -x "$(VIRTUAL_ENV)/bin/pip" || easy_install pip
-	@test -x "$(VIRTUAL_ENV)/bin/pip-accel" || pip install --quiet pip-accel
-	@pip-accel install --quiet --requirement=requirements.txt
+	@pip install --quiet --requirement=requirements.txt
 	@pip uninstall --yes coloredlogs &>/dev/null || true
 	@pip install --quiet --no-deps --ignore-installed .
 
@@ -43,21 +42,21 @@ check: install
 	@scripts/check-code-style.sh
 
 test: install
-	@pip-accel install --quiet --requirement=requirements-tests.txt
+	@pip install --quiet --requirement=requirements-tests.txt
 	@py.test --cov --cov-report=html --no-cov-on-fail
 	@coverage report --fail-under=90
 
 tox: install
-	@pip-accel install --quiet tox && tox
+	@pip install --quiet tox && tox
 
 docs: install
-	@pip-accel install --quiet sphinx
+	@pip install --quiet sphinx
 	@cd docs && sphinx-build -nb html -d build/doctrees . build/html
 
 publish: install
 	git push origin && git push --tags origin
 	$(MAKE) clean
-	pip-accel install --quiet twine wheel
+	pip install --quiet twine wheel
 	python setup.py sdist bdist_wheel
 	twine upload dist/*
 	$(MAKE) clean

scripts/check-code-style.sh

@@ -7,7 +7,7 @@
 
 if python -c 'import sys; sys.exit(0 if sys.version_info[:2] >= (2, 7) else 1)'; then
   echo "Updating installation of flake8 .." >&2
-  pip-accel install --upgrade --quiet --requirement=requirements-checks.txt
+  pip install --upgrade --quiet --requirement=requirements-checks.txt
   flake8
 else
   echo "Skipping code style checks on Python 2.6 .." >&2