Update PhpStorm EAP to 138.38 release.
Change homepage to the one specific to EAP rather than the general URL
for the app.
Merge branch 'hotfix/phpstorm-eap-138.38'

* hotfix/phpstorm-eap-138.38:
  Update PhpStorm EAP to 138.38 release. Change homepage to the one specific to EAP rather than the general URL for the app.