clean up dist directory

dist/_internalnterfaces.d.ts

dist/_internalnterfaces.js

dist/_internalnterfaces.js.map

dist/_test/slider-test.d.ts

dist/_test/slider-test.js

dist/_test/slider-test.js.map

dist/jquery-plugin/animate-buttons.d.ts

dist/jquery-plugin/animate-buttons.js

dist/jquery-plugin/animate-buttons.js.map

dist/jquery-plugin/range-change.d.ts

dist/jquery-plugin/range-change.js

dist/jquery-plugin/range-change.js.map

dist/src-ts/_internalnterfaces.d.ts

dist/src-ts/_internalnterfaces.js

dist/src-ts/_internalnterfaces.js.map

dist/src-ts/_test/my_little_test.d.ts

dist/src-ts/_test/my_little_test.js

dist/src-ts/_test/my_little_test.js.map

dist/src-ts/index.d.ts

dist/src-ts/index.js