Update 40 files

- /gradle/wrapper/gradle-wrapper.jar
- /gradle/wrapper/gradle-wrapper.properties
- /src/main/resources/static/css/ItemDetail.css
- /src/main/resources/static/css/bootstrap - Copy.css
- /src/main/resources/static/css/bootstrap.min - Copy.css
- /src/main/resources/static/css/index.css
- /src/main/resources/static/css/reset.css
- /src/main/resources/static/css/style.css
- /src/main/resources/static/images/index-image-1.jpg
- /src/main/resources/static/images/index-image-2.jpg
- /src/main/resources/static/images/logo.jpg
- /src/main/resources/static/images/photo.jpg
- /src/main/resources/static/lib/bootstrap.js
- /src/main/resources/static/lib/jquery.js
- /src/main/resources/templates/css/bootstrap - Copy.css
- /src/main/resources/templates/css/bootstrap.min - Copy.css
- /src/main/resources/templates/lib/bootstrap.js
- /src/main/resources/templates/lib/jquery.js
- /src/main/resources/templates/page/groupList.html
- /src/main/resources/templates/page/index.html
- /src/main/resources/templates/page/itemDetail.html
- /src/main/resources/templates/page/itemForm.html
- /src/main/resources/templates/page/itemList.html
- /src/main/resources/templates/page/personalInformation.html
- /src/main/resources/static/login.html
- /src/main/resources/static/register.html
- /src/main/resources/application.properties
- /src/test/java/uk/ac/cf/spring/demo/DemoApplicationTests.java
- /src/main/java/uk/ac/cf/spring/demo/takeaway/index/ExchangeController.java
- /src/main/java/uk/ac/cf/spring/demo/takeaway/index/ExchangeItem.java
- /src/main/java/uk/ac/cf/spring/demo/takeaway/index/ExchangeService.java
- /src/main/java/uk/ac/cf/spring/demo/takeaway/index/IndexController.java
- /src/main/java/uk/ac/cf/spring/demo/DemoApplication.java
- /.gitattributes
- /.gitignore
- /build.gradle
- /gradlew
- /gradlew.bat
- /README.md
- /settings.gradle