[PRD-6122] Strip trailing slash from JCRSolutionFileModel url

[kynx]

This PR fixes issues publishing reports to a Pentaho server configured to serve content from an empty context path (ie, http://localhost:8080, not http://localhost:8080/pentaho)

[buildguy]

:white_check_mark: Build finished in 5m 40s

Build command:

mvn clean verify -B -e -Daudit -amd -pl libraries/libpensol

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:ok_hand: All tests passed!

Tests run: 88, Failures: 0, Skipped: 1    Test Results

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:information_source: This is an automatic message

[kynx]

Fixing the codesmell Sonar is reporting is made difficult by https://sonar.pentaho.net/project/issues?id=org.pentaho.reporting%3Apentaho-reporting&pullRequest=1371&resolved=false&types=CODE_SMELL not resolving. Suggestions?

[buildguy]

:x: Build failed in 3h 4m 41s

Build command:

mvn clean verify -B -e -Daudit -amd -pl libraries/libpensol

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:exclamation: No tests found!

Errors:

Filtered log (click to expand)

script returned exit code 1

:information_source: This is an automatic message

[buildguy]

:x: Build failed in 1h 36m 46s

Build command:

mvn clean verify -B -e -Daudit -amd -pl libraries/libpensol

---

:exclamation: No tests found!

Errors:

Filtered log (click to expand)

script returned exit code 1

:information_source: This is an automatic message