Fixing the bedrock download link
Corrected a typo
Nukkit changed their jenkins install, causing 404 when installing.
Parker changed minecraft paths on git, failed to upload wget for the files.
Changed the startup config to match the new release.
Fixed an issue where the files wouldn't extract properly.
Changing to grabbing the download url from the minecraft bedrock download page directly.
You can now specify build number for pocketmine. "latest" will default to the last stable release.
Switch to using last successful build and the ubuntu image to run the server.
bedrock 1.7.0.13 is the latest bedrock version to be released.