[#152] Remove tidy.html and tokens.html and reveal users.html in navbar

[pjeli]

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GitHub Issue

Fixes #152

Checklist:

• This pull request updates the documentation
• This pull request changes the code
• Title of the PR is of format (example) : [#25] Add Pull Request Template, where [#25] is the GitHub issue number

What is the purpose of this pull request?

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Commit Guidelines

• My commits all reference GH issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "How to write a good git commit message":
  1. Subject is separated from body by a blank line
  2. Subject is limited to 50 characters
  3. Subject does not end with a period
  4. Subject uses the imperative mood ("add", not "adding")
  5. Body wraps at 72 characters
  6. Body explains "what" and "why", not "how"

[codecov]

Codecov Report

Merging #158 into master will decrease coverage by 0.16%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #158      +/-   ##
============================================
- Coverage     77.08%   76.92%   -0.17%     
+ Complexity     1073     1069       -4     
============================================
  Files            40       40              
  Lines          5585     5585              
  Branches        516      516              
============================================
- Hits           4305     4296       -9     
- Misses          967      974       +7     
- Partials        313      315       +2

Impacted Files	Coverage Δ	Complexity Δ
...op/hdfs/server/namenode/JavaCollectionQEngine.java	72.33% <0%> (-0.56%)	237% <0%> (-2%)
...c/main/java/com/paypal/namenode/WebServerMain.java	75.63% <0%> (-0.2%)	115% <0%> (-1%)
...op/hdfs/server/namenode/JavaStreamQueryEngine.java	78.03% <0%> (-0.13%)	224% <0%> (-1%)

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