poco: update to 1.7.7

Update package to latest stable version (1.7.7)

Signed-off-by Jean-Michel Julien <jean-michel.julien@trilliantinc.com>

libs/poco/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=poco
-PKG_VERSION:=1.7.5
+PKG_VERSION:=1.7.7
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=http://pocoproject.org/releases/poco-1.7.5
-PKG_MD5SUM:=baafda4833c4dd95993398d9f237c96c
+PKG_SOURCE_URL:=http://pocoproject.org/releases/poco-1.7.7
+PKG_MD5SUM:=deb1e25704a39aac9fcd2beb4db55316
 
 PKG_LICENSE:=BSL-1.0
 PKG_LICENSE_FILES:=LICENSE