Switch from JCenter to Maven Central (spaceapi-community#6)

Author: dbrgn

app/build.gradle

@@ -33,7 +33,7 @@ dependencies {
     implementation "androidx.annotation:annotation:1.1.0"
 
     // SpaceAPI Library
-    implementation "spaceapi-community:spaceapi-kt:0.2.1"
+    implementation "io.github.spaceapi-community:spaceapi-kt:0.3.0"
 
     // JUnit for testing
     testImplementation 'junit:junit:4.13.1'

build.gradle

@@ -2,21 +2,22 @@
 
 buildscript {
     repositories {
-        jcenter()
+        mavenCentral()
         google()
     }
 
     dependencies {
+        // Android gradle integration
         classpath 'com.android.tools.build:gradle:4.1.0'
+
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
 }
 
 allprojects {
     repositories {
-        jcenter()
-        maven { url "https://dl.bintray.com/spaceapi-community/maven" }
+        mavenCentral()
         google()
     }
 }