Update to gradle 3.0

[d-Rickyy-b]

Configuration 'compile' in project ':app' is deprecated. Use 'implementation' instead.

https://developer.android.com/studio/build/gradle-plugin-3-0-0-migration.html

MGGVertretungsplan/app/build.gradle

Lines 36 to 47 in 1ab49e3

	dependencies {
	compile 'com.android.support:support-v4:26.1.0'
	compile 'com.android.support:appcompat-v7:26.1.0'
	compile 'com.android.support:design:26.1.0'
	compile 'com.android.support:recyclerview-v7:26.1.0'
	compile 'com.android.support:cardview-v7:26.1.0'
	compile 'com.android.support:preference-v7:26.1.0'
	compile 'com.android.support:customtabs:26.1.0'
	compile 'org.jsoup:jsoup:1.9.2'
	compile 'com.github.paolorotolo:appintro:4.1.0'
	compile 'com.thebluealliance:spectrum:0.7.1'
	}