upgraded build Gradle to v2.1
switched to v0.0.7-SNAPSHOT of propdeps plugin for compatibility with Gradle 2+
Cucumber now executed externally with JavaExec task
reverted to Gradle 1.12 as 2.+ makes plugin less compatible with previous versions
first doc for v0.8 in README
test fix: "dev" as default version/repo involved in features
JVM options as embedded DSL
removed unused Java 1.7-specific imports
fixed mustRunAfter syntax in test
propdeps dependency bumped to v0.0.7
CucumberJvmOptions based on JavaForkOptions rather than JvmOptions
added scenario with use of environment variable
indentation in java_fork_options.feature
env var example added to README
removed useless imports
disabled "asyougo" formatter (currently not supported anyway)
bumped to v0.8
Merge pull request #37 from samueltbrown/spawned-cucumber-execution

Spawned cucumber execution