JDK 10 for Travis-CI builds

JDK 10 for Travis-CI builds.travis.yml

# This is a Temporary solution until openJDK 10 will be added to travis configuration.
# Specify language
language: java

# Disable other otherJDK (or unavailible)
# jdk:
#   - oraclejdk8

# Download jdk installer
before_install:
  - wget https://github.com/sormuras/bach/raw/master/install-jdk.sh

# Temporary solutions to install openJDK 10
matrix:
  include:
      - env: JDK='OpenJDK 10'
        install: . ./install-jdk.sh -F 10 -L GPL
        
# Now your builds will use OpenJDK 10