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 SCons (Python DSL).
Merge pull request #83 from NSError/scons

Added SCons (Python DSL)
Fix insert-mode <plug>NERDCommenterInsert mapping.

This was broken by the refactoring that introduced s:CreateMaps().
Avoid beep and additional space on insert-mode commenting at EOL.

When adding a comment at the end of a line (a common use when typing straight ahead) that only has a left part (like with ft=cpp, where the comment string is "// "), there is an audible beep and an additional space character is inserted (yielding "//  ").

Suppress the attempted cursor move to the right (which fails in that case) via :silent!.
Use :startinsert! (with a bang) to continue editing at the end of the line instead of the workaround that inserts an additional space.
Merge pull request #87 from inkarkat/improve-insert-mode-mapping

Avoid beep and additional space on insert-mode commenting at EOL.
Merge pull request #86 from inkarkat/fix-insert-mode-plug-mapping

Fix insert-mode <plug>NERDCommenterInsert mapping.
Added comment support for Octave (a opensource Matlab clone)
adding vala support
Merge pull request #90 from 6ahodir/master

vala support
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