Add version in file names.

diff --git a/blog/data/2012-01-07-skolelinux.txt b/blog/data/2012-01-07-skolelinux-beta2.txt
similarity index 100%
rename from blog/data/2012-01-07-skolelinux.txt
rename to blog/data/2012-01-07-skolelinux-beta2.txt

diff --git a/blog/data/2012-02-04-skolelinux.txt b/blog/data/2012-02-04-skolelinux-beta3.txt
similarity index 100%
rename from blog/data/2012-02-04-skolelinux.txt
rename to blog/data/2012-02-04-skolelinux-beta3.txt

diff --git a/blog/data/2012-02-19-skolelinux.txt b/blog/data/2012-02-19-skolelinux-rc1.txt
similarity index 100%
rename from blog/data/2012-02-19-skolelinux.txt
rename to blog/data/2012-02-19-skolelinux-rc1.txt

diff --git a/blog/data/2012-02-27-skolelinux.txt b/blog/data/2012-02-27-skolelinux-rc2.txt
similarity index 100%
rename from blog/data/2012-02-27-skolelinux.txt
rename to blog/data/2012-02-27-skolelinux-rc2.txt