Makes jdk8_ea and jdk9_ea tasks compatible with PowerShell windows
Add curl certificate
Install exe file in build directory
Add SSL_CERT_FILE environment variable
fix location of extra directory under Linux
Merge pull request #5 from mojavelinux/pr-93-review

fix location of extra directory under Linux
Merge pull request #93 from Mogztter/issue-88

Make jdk8_ea and jdk9_ea tasks compatible with PowerShell windows