Update version of android-skd-installer user
Added 'expect' to fix fulfill dependency on verion-2 of android-sdk-installer
Added new Android licenses to accept through parameter in version 2 of android-sdk-installer
'set' is not enough, no matter the examples... using 'export'
Updated version of build-tools to 20 to satisfy new minimum requirement of platform-tools
Merge pull request #547 from owncloud/fix_Android_SDK_license_agreement_in_Travis_build

Agreed new Android SDK license for updated platform tools