FIX: Fix client timings regression and bring back 'show trivial'

[OsamaSayegh]

Fix for #440

Client timings regressed when we removed jQuery a while ago; this PR fixes the regression. Tested on IE11 to ensure MP doesn't regress on IE11.

[codecov-commenter]

Codecov Report

Merging #441 into master will decrease coverage by 0.09%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #441      +/-   ##
==========================================
- Coverage   88.48%   88.38%   -0.10%     
==========================================
  Files          22       22              
  Lines        1337     1317      -20     
==========================================
- Hits         1183     1164      -19     
+ Misses        154      153       -1     

Impacted Files	Coverage Δ
lib/mini_profiler/asset_version.rb	100.00% <100.00%> (ø)
lib/mini_profiler/timer_struct/page.rb	88.88% <0.00%> (-1.12%)	⬇️
lib/mini_profiler/timer_struct/sql.rb	84.21% <0.00%> (-0.79%)	⬇️
lib/mini_profiler/gc_profiler.rb	96.25% <0.00%> (-0.18%)	⬇️
lib/mini_profiler/client_settings.rb	94.11% <0.00%> (-0.09%)	⬇️
lib/mini_profiler/storage/redis_store.rb	95.58% <0.00%> (-0.07%)	⬇️
lib/mini_profiler/timer_struct/request.rb	98.98% <0.00%> (-0.02%)	⬇️
lib/mini_profiler/timer_struct/client.rb	100.00% <0.00%> (ø)
lib/mini_profiler/timer_struct/custom.rb	100.00% <0.00%> (ø)
lib/mini_profiler_rails/railtie_methods.rb	100.00% <0.00%> (ø)
... and 1 more

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[SamSaffron]

cool I will do a new release!!