scripts: New script for bumping the appc/spec version
scripts: New script for bumping the appc/spec version

Called without any parameters. Should be executed right after updating
appc/spec with glide.

This script takes an old version from stage1/aci/aci-manifest.in and a
new version from glide.yaml and does the replacements if they are
different.

lucasallan/rkt,achanda/rkt,cab105/rkt,Shashwatsh/rkt,squeed/rkt,sstabellini/rkt,achanda/rkt,yifan-gu/rkt,kinvolk/rkt,intelsdi-x/rkt,coreos/rkt,rkt/rkt,s-urbaniak/rkt,joshix/rkt,joshix/rkt,rkt/rkt,cab105/rkt,shobhit85/rkt,coreos/rkt,shobhit85/rkt,ybubnov/rkt,dgonyeo/rkt,rkt/rkt,cab105/rkt,euank/rkt,squeed/rkt,dgonyeo/rkt,squeed/rkt,nhlfr/rkt,alban/rkt,Wilybald/rkt,kinvolk/rkt,lucasallan/rkt,dgonyeo/rkt,Wilybald/rkt,rkt/rkt,nhlfr/rkt,Shashwatsh/rkt,sstabellini/rkt,Wilybald/rkt,jonboulle/rkt,jonboulle/rkt,intelsdi-x/rkt,shobhit85/rkt,yifan-gu/rocket,yifan-gu/rocket,joshix/rkt,alban/rkt,ybubnov/rkt,coreos/rkt,joshix/rkt,lucasallan/rkt,lucasallan/rkt,kinvolk/rkt,yifan-gu/rkt,sstabellini/rkt,jakon89/rkt,euank/rkt,nhlfr/rkt,jonboulle/rkt,yifan-gu/rocket,kinvolk/rkt,s-urbaniak/rkt,ybubnov/rkt,jakon89/rkt,alban/rkt,achanda/rkt,Shashwatsh/rkt,s-urbaniak/rkt,yifan-gu/rkt,Wilybald/rkt,euank/rkt,intelsdi-x/rkt,jakon89/rkt