ffmpeg: grep 1.2.* releases in update macro

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
ffmpeg: update to 1.2.4

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Add update-package-% target
Merge pull request #282 from TimothyGu/update-sep

Add update-package-% target
Merge pull request #281 from TimothyGu/update

Update ffmpeg
package ffmpeg: use $(SORT) variable
package netcdf: fix checksum
update package binutils
update package exiv2
gdal: build with static proj.

This fixes the following runtime error for applications that use projection
functionality:

ERROR 6: Unable to load PROJ.4 library (libproj-0.dll), creation of
OGRCoordinateTransformation failed.
package lapack: fix checksum
package netcdf: fix checksum
Merge branch 'stable'
Makefile and docs: require automake 1.12 or later
Merge branch 'stable'

Conflicts:
	Makefile
update package armadillo
update package file
update package gsoap
update package imagemagick
update packages ilmbase openexr