After removing `phpmyadmin`, environment is not clear properly

[Jimmy Chu]

• The app is not restarted
• The app supposedly redirection is missing (say WP installation redirection)

[Jimmy Chu]

The app is indeed restarted (app.backend_stop_start! is called), but just the new configuration is not read.

[LiAh Sheep]

Merged in jimmychu0807/cnpaas-portal/phpmyadmin-bugfix (pull request #196)

fix: using reload instead of restart to refresh app config (whether a service is added or removed) (fixing: #203)

→ <<cset b4b215e04909>>