Sync the various libcangjie pages

A few things in the libcangjie repo:
- We added install instructions on a few distros
- We documented the libcangjie_cli
- We now have stable releases

This just brings in these changes, synchronizing the website with the
latest state of libcangjie upstream.
Sync the various pycangjie pages

A few things in the pycangjie repo:
- We added install instructions on a few distros
- We now have stable releases

This just brings in these changes, synchronizing the website with the
latest state of pycangjie upstream.
Sync the various ibus-cangjie pages

A few things in the ibus-cangjie repo:
- We added install instructions on a few distros
- We now have stable releases

This just brings in these changes, synchronizing the website with the
latest state of ibus-cangjie upstream.
Merge pull request #9 from Cangjians/sync

Sync