Fix CLI
* CLI now reads cdap-site.xml in the classpath for hostname/port/ssl configuration
* CLI now saves the generated access token to the local filesystem for later use
* cdap-cli.bat now passes arguments through to `CLIMain`
* cdap-cli.sh now passes arguments through to `CLIMain` and no longer `cd`'s into the CLI jar's directory
Merge pull request #508 from caskdata/feature/fix-cli

(CDAP-369) Fix cdap-cli
Fix checkstyle
Update client version
Merge pull request #516 from caskdata/feature/update-client-version-2.5.1

Update client version
Merge pull request #515 from caskdata/feature/fix-checkstyle

Fix checkstyle
Fix scrollbar problem in CSS.
Fix QueryClientTestRun
Merge pull request #519 from caskdata/feature/fix-queryclienttest

Fix QueryClientTestRun
Remove unused CSS rule.
Merge pull request #518 from caskdata/feature/r2.5.1_fix_CSS

Fix scrollbar problem in CSS.
Merge branch 'release/2.5.0' into feature/r2.5.1_renumbering