Log Message:
mikutter: update to 3.6.5.

pkgsrc changes:
* explicitly depends on json_pure gem as per Gemfile
* remove patches that has been integrated in upstream

Upstream changes:

mikutter 3.6.5

* world: on serializing World Model, change format to JSON to use
  functions of Diva
* show an active account name in tooltip when mouse hovers on
  World Shifter icon
* logo image in Form DSL about dialog widget was not shown in some case
* avoid warning caused by use of a deprecated constant
* follows and followers are not taken properly so that notifications
  of follow and remove didn't work
* form DLS options were not in order
* Twitter: time of direct messages in the Activity tab was shown in UTC
* clear search timeline if blank is specified in the search box
* update description of requirements in README by assuming use of bundler
* twitpic images were not shown in some case