checkstyle.vim: add catch to checked keywords

* Check catch() without space
* Check }\ncatch () with newline
* Remove false positive on area_for() and other functions ending with a keyword

checkstyle: Add missing check for space after switch

improved Vim coding guidelines checker

* Avoids highlighting some matches when inside C++ comments
* Add operators << and >>
* Automatic initialization when opening Vim in the Haiku source
directory (if you use the same directory layout as me)
* Matches are highlighted in red, rather than reusing the "Search" match
group. You can pick another color by editing the "highlight Style"
definition.

Improvements are still welcome.

checkstyle.vim: add catch to checked keywords

* Check catch() without space
* Check }\ncatch () with newline
* Remove false positive on area_for() and other functions ending with a keyword

checkstyle: Add missing check for space after switch

improved Vim coding guidelines checker

* Avoids highlighting some matches when inside C++ comments
* Add operators << and >>
* Automatic initialization when opening Vim in the Haiku source
directory (if you use the same directory layout as me)
* Matches are highlighted in red, rather than reusing the "Search" match
group. You can pick another color by editing the "highlight Style"
definition.

Improvements are still welcome.