net-im/pidgin-skypeweb: Update to 1.7

Changes: https://github.com/EionRobb/skype4pidgin/releases/tag/1.7
Changes: https://github.com/EionRobb/skype4pidgin/releases/tag/1.6
PR: 248779
Submitted by: Vikash Badal <vikashb@where-ever.za.net>
Approved by: sepulkarium45@yahoo.com (maintainer timeout, 2 weeks)