Build: updated build scripts with more modern version

package.json

@@ -6,15 +6,15 @@
 	"module": "./dist/Prando.es.js",
 	"types": "./dist/Prando.d.ts",
 	"scripts": {
-		"build": "rollup -c",
+		"build": "rimraf dist && rollup -c",
 		"build:declarations": "tsc -d",
 		"dev": "rollup -c -w",
 		"test": "jest --testMatch **/test/**/*-test-*.js",
-		"test:coverage": "npm run test -- --coverage",
-		"test:coverage:coveralls": "npm run test -- --coverage --coverageReporters=text-lcov | coveralls",
-		"test:watch": "npm run test -- --watchAll",
+		"test:coverage": "yarn test --coverage",
+		"test:coverage:coveralls": "yarn test --coverage --coverageReporters=text-lcov | coveralls",
+		"test:watch": "yarn test --watchAll",
 		"lint": "tslint -c tslint.json src/*.ts",
-		"prepublish": "npm run build && npm run build:declarations"
+		"prepublish": "yarn build && yarn build:declarations"
 	},
 	"repository": {
 		"type": "git",
@@ -42,6 +42,7 @@
 		"babel-jest": "^23.6.0",
 		"coveralls": "^3.0.2",
 		"jest": "^23.6.0",
+		"rimraf": "^2.6.2",
 		"rollup": "^0.67.4",
 		"rollup-plugin-typescript": "^1.0.0",
 		"tslint": "^5.11.0",

yarn.lock

@@ -3650,7 +3650,7 @@ ret@~0.1.10:
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
   integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
 
-rimraf@^2.5.4, rimraf@^2.6.1:
+rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==