transmission: update to 2.93; move to github

closes https://trac.macports.org/ticket/52146

net/transmission/Portfile

@@ -1,11 +1,10 @@
 # -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:et:sw=4:ts=4:sts=4
 
 PortSystem      1.0
+PortGroup       github 1.0
 PortGroup       xcode 1.0
 
-name            transmission
-version         2.92
-revision        1
+github.setup    transmission transmission 2.93
 categories      net aqua
 maintainers     {khindenburg @kurthindenburg} openmaintainer
 license         MIT GPL-2
@@ -21,22 +20,13 @@ long_description \
     This is the Cocoa version.
 homepage        https://www.transmissionbt.com
 
-# These are invalid - change to github upon next release
-master_sites    https://download.m0k.org/transmission/files/ \
-                https://download.transmissionbt.com/files/
-
-checksums       \
-    rmd160  6da78ce333fa2ea69aa4954c3b052a818ce7c93e \
-    sha256  3a8d045c306ad9acb7bf81126939b9594553a388482efa0ec1bfb67b22acd35f
-
-use_xz          yes
+checksums           rmd160  157a6f48984db1b98da186807062bcc693129a2a \
+                    sha256  f9a3e22e56abe55a71d46367a5469c07cdaad39f8143a945f649d59498b6569b \
+                    size    6340947
 
 patchfiles      patch-xcodebuild.diff patch-sparkle.diff \
                 patch-disable-sparkle-menu.diff
 
-# fix missing libcrypto.0.9.8 - can be removed for transmission 2.93
-patchfiles-append patch-libcrypto-fix.diff
-
 platforms       macosx
 
 depends_lib-append      port:gettext \
@@ -83,7 +73,3 @@ if {([vercmp $xcodeversion 7.0] < 0) || ([vercmp ${macosx_deployment_target} 10.
         return -code error "incompatible OS X version"
     }
 }
-
-livecheck.type      regex
-livecheck.url       ${homepage}/download/index.html
-livecheck.regex     The current release version is <b>(.*)</b>