downloads: Improve the index pages

We now display the timezone along with the date/time of each release.

In addition, this commit gets rid of those annoying « No new line »
messages that Git puts at the end of every file when showing diffs.
libcangjie: Add the new 1.1 release
pycangjie: Add the 1.1 release
ibus-cangjie: Add the 2.1 release
Merge pull request #11 from Cangjians/releasing

Releasing