Small changes on Makefile

Makefile

@@ -1,30 +1,28 @@
 build: bootstrap develop test coverage
 
 release: zip_docs
-	@python setup.py sdist upload
+	python setup.py sdist upload
 	@echo 'Released :)'
 
 zip_docs: documentation
-	@cd docs/_build/html && zip -r docs.zip *
+	cd docs/_build/html && zip -r docs.zip *
 	@echo 'Docs are at docs/_build/html/docs.zip file'
 
 bootstrap:
-	@pip install -r requirements.txt
+	pip install -r requirements.txt
 
 develop:
-	@python -c 'from flaskext import mongoalchemy' 2>/dev/null || python setup.py develop
+	python -c 'from flaskext import mongoalchemy' 2>/dev/null || python setup.py develop
 
 test: clean
-	@specloud --config=tests/nose.cfg
+	specloud --config=tests/nose.cfg
 
 coverage:
-	@coverage html
+	coverage html
 
 documentation: clean
-	@cd docs && make html
-	@firefox docs/_build/html/index.html
+	cd docs && make html
 
 clean:
 	@echo 'Cleaning...'
-	@find . -name '*.pyc' -exec rm -f {} \;
-	@rm -rf cover .coverage docs/_build/* *.egg-info dist build
+	git clean -dfx