Improved QA script of the Travis CI build configuration, continued
Improved QA script of the Travis CI build configuration, continued

- Fixed failure when checking the result from the server connectivity
  checking.
- Enabled using which application to use for carrying out the checks
  (curl/wget) leveraging the CHECKER environment variable. By default,
  wget will be used.
- Enabled showing additional log messages w.r.t. the checking process
  leveraging the DEBUG environment variable when its value is 'verbose'.

SmartDeveloperHub/sdh-maven