<@U092308M7> Any specifics around building with `0...

# ktor

[mkporwit]

@orangy Any specifics around building with 0.4.0-alpha-13? Just updating our $ktor_version in our build.gradle from 0.3.3 to 0.4.0-alpha-13 throws errors from `ktor-test-host`:

Warning:<i><b>root project 'documentid-server': Unable to build Kotlin project configuration</b>
Details: java.lang.reflect.InvocationTargetException: null
Caused by: org.gradle.api.artifacts.ResolveException: Could not resolve all dependencies for configuration ':testCompileClasspath'.
Caused by: org.gradle.internal.resolve.ModuleVersionNotFoundException: Could not find org.mortbay.jetty.alpn:alpn-boot:${alpn.boot.version}.
Searched in the following locations:
    <https://jcenter.bintray.com/org/mortbay/jetty/alpn/alpn-boot/${alpn.boot.version}/alpn-boot-${alpn.boot.version}.pom>
    <https://jcenter.bintray.com/org/mortbay/jetty/alpn/alpn-boot/${alpn.boot.version}/alpn-boot-${alpn.boot.version}.jar>
    <https://dl.bintray.com/kotlin/kotlinx/org/mortbay/jetty/alpn/alpn-boot/${alpn.boot.version}/alpn-boot-${alpn.boot.version}.pom>
    <https://dl.bintray.com/kotlin/kotlinx/org/mortbay/jetty/alpn/alpn-boot/${alpn.boot.version}/alpn-boot-${alpn.boot.version}.jar>
    <https://dl.bintray.com/kotlin/ktor/org/mortbay/jetty/alpn/alpn-boot/${alpn.boot.version}/alpn-boot-${alpn.boot.version}.pom>
    <https://dl.bintray.com/kotlin/ktor/org/mortbay/jetty/alpn/alpn-boot/${alpn.boot.version}/alpn-boot-${alpn.boot.version}.jar>
Required by:
    project : > org.jetbrains.ktor:ktor-test-host:0.4.0-alpha-13</i>