Bump upstatement/routes package to 0.5

[seanstickle]

Issue

The current version of timber requires upstatement/routes r0.4. This version of routes requires an older version of altorouter, and that version of altorouter does a reset of $_REQUEST that causes some problems with other plugins (e.g. https://twitter.com/seanstickle/status/1103481154785693697).

Solution

@jarednova over at Upstatement released 0.5 of upstatement/routes today that updates the version of altorouter that is used. This PR just bumps the version of upstatement/routes to 0.5.

Impact

No expected impact. The changes to upstatement/routes since 0.4 have been minor -- just bumping the version of altorouter and adding a priority param (Upstatement/routes@5040174).

[codecov]

Codecov Report

Merging #1946 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1946   +/-   ##
=========================================
  Coverage     95.04%   95.04%           
  Complexity     1556     1556           
=========================================
  Files            48       48           
  Lines          3672     3672           
=========================================
  Hits           3490     3490           
  Misses          182      182

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[coveralls]

Coverage remained the same at 94.324% when pulling 9d8787a on seanstickle:master into dd57f2b on timber:master.

[coveralls]

Coverage remained the same at 94.324% when pulling 9d8787a on seanstickle:master into dd57f2b on timber:master.

[jarednova]

Yup, let's do it. Thanks for seeing this through @seanstickle !