transmission: Update to 2.93 + fixes

DNS rebinding protection introduced a new option. Use it to disable it as OpenWrt does not need it.

Adjusted Makefile to use the release instead of a git version. Also cleaned up and added LICENSE entries.

Eliminated useless patches. The syslog one actually doesn't log much. No need to mask the os release anymore either.

Added group entry to init script. Otherwise files end up being owned by user:root which is bogus.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/transmission/Makefile

@@ -8,22 +8,22 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=transmission
-PKG_VERSION:=2.92+git
-PKG_RELEASE:=5
+PKG_VERSION:=2.93
+PKG_RELEASE:=1
 
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=https://github.com/transmission/transmission.git
-PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=5b29fe15561d40c40cbee635446df6b33e18d2c2
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz
-PKG_MIRROR_HASH:=f99982ae68564da9bf6ad4407285aff2e29508e4fd801ff56f86a8b3dae01819
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
+PKG_SOURCE_URL:=https://github.com/transmission/transmission-releases/raw/master
+PKG_HASH:=8815920e0a4499bcdadbbe89a4115092dab42ce5199f71ff9a926cfd12b9b90b
+PKG_MAINTAINER:=Rosen Penev <rosenp@gmail.com>
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
+
+PKG_LICENSE:=GPL-2.0+
+PKG_LICENSE_FILES:=COPYING
 
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
 
-PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
-
 include $(INCLUDE_DIR)/package.mk
 
 define Package/transmission/template
@@ -32,7 +32,6 @@ define Package/transmission/template
   CATEGORY:=Network
   TITLE:=BitTorrent client
   URL:=http://www.transmissionbt.com
-  MAINTAINER:=Rosen Penev <rosenp@gmail.com>
 endef
 
 define Package/transmission-daemon/Default