[feature] Remove unused .travis.yml, Makefile, Gruntfile.js

Author: konovalovsergey

.gitignore

@@ -7,7 +7,6 @@ FileConverter/bin
 DocService/npm-debug.log
 build
 node_modules
-/Gruntfile.js.out
 local-development-*.json
 *.pyc
 run-develop-local.py