[lazarus] updates

[Mattias Gaertner]

Hi all,

Updates:

- fpc ppu to fpc source links are now saved. i.e. laz does not any longer scan
  the fpc source dir every startup, but only if compiler or its search path 
  is changed.

- improved find declarations expression evaluation (e.g. 'inherited', brackets
   in variables, address operator @, function results)

- added text editing commands to keymapping (the commands were already there,
  but you can now define the keys):
  -Scroll up one line leaving cursor position unchanged  Ctrl+Up
  -Scroll down one line leaving cursor position unchanged Ctrl+Down
  -Scroll left one char leaving cursor position unchanged
  -Scroll right one char leaving cursor position unchanged
  -Delete last char                         Backspace
  -Delete char at cursor                    Delete
  -Delete from cursor to end of word        Ctrl+T
  -Delete from cursor to start of word      Ctrl+Backspace
  -Delete from cursor to beginning of line  
  -Delete from cursor to end of line        Ctrl+Shift+Y
  -Delete current line                      Ctrl+Y
  -Delete whole text       
  -Break line at current position, move caret to new line   Return
  -Break line at current position, leave caret              Ctrl+N

- go to start or beginning of text will now add a jump point

- added flags for saving editor file info
  see Project -> Project Options -> Info

- splittet the gtkglarea demo into example and component
  The demo can now be found as a lazarus project under
  <lazarusdir>/examples/gtkglarea/gtkglarea.lpi

- added search path editor for compiler options 


Mattias