fix bk install path

Author: Vladimir Kotal

dev/before_install

@@ -3,7 +3,7 @@
 if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
 	sudo apt-get update -qq
 	sudo apt-get install -qq exuberant-ctags cvs git mercurial cssc bzr subversion monotone rcs rcs-blame python3 python3-pip pep8;
-	sudo ./scripts/install-bitkeeper.sh
+	sudo ./dev/install-bitkeeper.sh
 	sudo pip3 install --upgrade pip
 	sudo pip3 install flake8
 elif [[ "$TRAVIS_OS_NAME" == "osx" ]]; then