Merge branch '1607-upgrade-rome' into 'master'

Upgrade Rome to fix memory allocation bug

Closes #1607

See merge request briar/briar!1151

briar-core/build.gradle

@@ -10,7 +10,7 @@ apply from: '../dagger.gradle'
 
 dependencies {
 	implementation project(path: ':briar-api', configuration: 'default')
-	implementation 'com.rometools:rome:1.10.0'
+	implementation 'com.rometools:rome:1.12.1'
 	implementation 'org.jdom:jdom2:2.0.6'
 	implementation 'com.squareup.okhttp3:okhttp:3.12.2'
 	implementation 'org.jsoup:jsoup:1.11.3'

briar-core/witness.gradle

@@ -11,8 +11,8 @@ dependencyVerification {
         'com.google.googlejavaformat:google-java-format:1.5:google-java-format-1.5.jar:aa19ad7850fb85178aa22f2fddb163b84d6ce4d0035872f30d4408195ca1144e',
         'com.google.guava:guava:25.0-jre:guava-25.0-jre.jar:3fd4341776428c7e0e5c18a7c10de129475b69ab9d30aeafbb5c277bb6074fa9',
         'com.google.j2objc:j2objc-annotations:1.1:j2objc-annotations-1.1.jar:2994a7eb78f2710bd3d3bfb639b2c94e219cedac0d4d084d516e78c16dddecf6',
-        'com.rometools:rome-utils:1.10.0:rome-utils-1.10.0.jar:5bcfe917fe90e89ae8e02fed543c3657a882565a6bc98197fc11905d88a2a501',
-        'com.rometools:rome:1.10.0:rome-1.10.0.jar:9ff5156d800f6c9ecbe7fca54daf756ac2720c41eb9240d2d66379700f1ecb8a',
+        'com.rometools:rome-utils:1.12.1:rome-utils-1.12.1.jar:d65ce5f0926ee80e1ed19b176428846098000fc4db09360a1b4dd3a1a36ed477',
+        'com.rometools:rome:1.12.1:rome-1.12.1.jar:13414d70a6c185e1374588321861c6e9eb7928eee502d032094ef3ca0fd921ae',
         'com.squareup.okhttp3:okhttp:3.12.2:okhttp-3.12.2.jar:ada4af7d0d82d56a65947bfc8e1d39d1f22a9a7cc568fcbc48b41288891606ad',
         'com.squareup.okio:okio:1.15.0:okio-1.15.0.jar:693fa319a7e8843300602b204023b7674f106ebcb577f2dd5807212b66118bd2',
         'com.squareup:javapoet:1.11.1:javapoet-1.11.1.jar:9cbf2107be499ec6e95afd36b58e3ca122a24166cdd375732e51267d64058e90',