Issue #36 - Publishing library to jcenter

Hi,
with this changes the application can be easily published to bintray/jcenter with a call of gradlew assemble uploadBintray. This will make it much easier to integrate this library in an android project. I tested the upload (https://bintray.com/mamohr/maven/memorizing-trust-manager/view) but as you are the creator of the lib you might want to upload it yourself. Just create a gradle.properties file and put in the username and api key as shown in gradle.properties.sample. 
Regards,
Mario