Update Racket to 6.1

Additionally, reuse `version` value in `url` and `link` stanzas.
Merge pull request #5631 from ndr-qef/racket

Update Racket to 6.1
Upgrade Baidu Input Method to v3.3_1000e
Merge pull request #5632 from vitorgalvao/fix-5626

Upgrade Baidu Input Method to v3.3_1000e
Update Pharo-3.0 SHA #5634
Merge pull request #5635 from kaniza/master

Update Pharo-3.0 SHA #5634
add proxifier
Merge pull request #5633 from mingzhi22/proxifier

add proxifier v2.11
New cask: WakeOnLan
Merge pull request #5638 from thephpjo/master

New cask: WakeOnLan