Add snippets for mail writing
The list should end obligatorily with ONE space

This is to differentiate to a paragraph where one line starts with a
number ending a sentence, e.g.:

    Foo bar <Enter>
    19.  Another sentence here.

Since I always put two spaces when separating sentences, they do not get
confused with number lists.
Add more mail snippets
Add deletion of text between pipes
Define LoadSnippets command to load snippets

This is a shortcut to snipMate's function.
Add mail snippet
Add function and map to rst titles
See if &filetype is empty when LoadSnippets'ing

This is when ft is not set, like plain txt files.
Drop insert maps.  Change normal maps.

This is because I get confused with insert maps...
Wrong added in testing.  Delete this line.
Fix order of stuff.  Delete obsolete things.
set autowrite
Error checking for rst

Define a RstCheck command that sets makeprg=rst2html + make to check for
syntax.  Also, delete errorformat definition on vimrc and start to
define them in filetypes plugins.
Add YAML settings
Add hpc snippet
Update comments settings for rst