Fixed Router#Find panic an infinite loop

[pafuent]

Before this fix, Router#Find panics or enters in an infinite loop when the context params values were set to a number less than the max number of params supported by the Router.
This fix #1655

[codecov]

Codecov Report

Merging #1661 (53653b3) into master (4422e3b) will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1661      +/-   ##
==========================================
+ Coverage   85.19%   85.26%   +0.06%     
==========================================
  Files          29       29              
  Lines        1986     1995       +9     
==========================================
+ Hits         1692     1701       +9     
  Misses        186      186              
  Partials      108      108              

Impacted Files	Coverage Δ
context.go	87.19% <100.00%> (+0.59%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4422e3b...53653b3. Read the comment docs.

[fanpei91]

Good done! I am looking forward to this being merged.

[lammel]

@pafuent Please rebase, I'll merge then.

[lammel]

Referencing #1689 as it might be related.

[pafuent]

@lammel rebased

[aldas]

@lammel @pafuent there is something wrong with this merge. I do not understand why

echo/echo.go

Line 503 in ea31edb

get(prefix, h)

is now there. Tests fail for static now

these are changes between last working merge to master and current master 4422e3b...master

and something went wrong with 4422e3b...0482cb3

[aldas]

This seems to be problem for these tests

f72eaa4#diff-996f64128c7fffe6cc8254ea4e1ac3c5693956f86ab5c8952e525083cf14ca27L26

but

echo/echo.go

Line 503 in ea31edb

get(prefix, h)

is also strange. get() is now executed twice

[pafuent]

@aldas Please check my comment here #1674 (comment)