Add rspec filetype.

Since some plugins set filetype of RSpec spec files to rspec, the
filetype has been added to list of types.
The comment string itself is the same as in Ruby files.
Added comment support for Octave (a opensource Matlab clone)
Update plugin/NERD_commenter.vim

Add comment delimiters for ConTeXt (the alternative delimiters are for Lua code).
Merge pull request #88 from jchain/master

I did a tiny change to add comment support for Octave filetype
Update plugin/NERD_commenter.vim

Cuda is the same as C.
Remove extra space from Haskell alt.
Merge pull request #97 from johntyree/patch-1

Update plugin/NERD_commenter.vim
Merge pull request #98 from johntyree/patch-2

Remove extra space from Haskell alt.
Merge pull request #91 from sietse/patch-1

Update plugin/NERD_commenter.vim
Merge pull request #79 from DawidJanczak/master

Add rspec flietype
Corrected the SQL comment keys

the SQL from some strick ones, such as procedures or mySql needs an extra space after the '--' comment. so it would be '-- ' the correct sintaxis for the comment
Merge pull request #101 from aemonge/patch-1

Corrected the SQL comment keys
Merge remote branch 'upstream/master'