joda target and java source/target

[mastef]

With a fresh hypsystem install always running into issues since it defaults to java 1.5, and NetworkInfos.java throws an error that multi-catch statements are not supported with -source 1.5

( Similar discussion at http://community.openfl.org/t/how-set-java-source/1887 )

Also joda-time is hardcoded to target=android-19

Would be great to add to both
https://github.com/hyperfiction/HypSystem/blob/master/dependencies/joda-time/project.properties
and
https://github.com/hyperfiction/HypSystem/blob/master/dependencies/hyp-system/project.properties

java.source=7
java.target=7

And to fix in

target=android-19
to
target=android-::ANDROID_TARGET_SDK_VERSION::