Fix build

Fix compilation error and project parent pom properties
I tried build it but it failed with the following error
```
❯ mvn clean package                                                                                                                                                                            [20:56:39]
[INFO] Scanning for projects...
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]   
[ERROR]   The project org.apache.jclouds.examples:jclouds-examples:1.7.3-SNAPSHOT (/Users/kupal/workspace/third-party/jclouds-examples/pom.xml) has 1 error
[ERROR]     Non-resolvable parent POM: Failure to find org.apache.jclouds:jclouds-project:pom:1.7.3-SNAPSHOT in https://repository.apache.org/content/repositories/snapshots was cached in the local repository, resolution will not be reattempted until the update interval of apache-snapshots has elapsed or updates are forced and 'parent.relativePath' points at wrong local POM @ line 22, column 11 -> [Help 2]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException
```