update history and announce for 0.4.0
treeb07c596e8d866f266018ef920cacb820630c18dc
-rw-r--r-- 4961 Announce.txt
-rw-r--r-- 3764 History.txt
-rw-r--r-- 2308 Manifest.txt
-rw-r--r-- 1583 README.txt
-rw-r--r-- 846 Rakefile
drwxr-xr-x - bin
drwxr-xr-x - examples
drwxr-xr-x - ext
drwxr-xr-x - ideas
drwxr-xr-x - lib
drwxr-xr-x - site
drwxr-xr-x - test