Simba: Changed the plugin memmgr notification to a Debugln.
Documentation updates.
New plugin code. ABI 0, 1 and 2 are supported.

Should be backwards compatible with old plugins and forward compatible with any
new plugins. However, new plugins will not be compatible with the old Simba.

Squashed commit of the following:

commit 05a584ae86606d8268636a111448f5edc2c8e132
Author: Merlijn Wajer <merlijn@wizzup.org>
Date:   Thu May 10 21:01:07 2012 +0200

    More plugin documentation.

commit 38374b28af0c5db491c74cabe8e8c9eccc4086a3
Author: Merlijn Wajer <merlijn@wizzup.org>
Date:   Thu May 10 20:45:31 2012 +0200

    More plugin work. ABI=2 now works on Linux.

commit a3845c007338e62147d6d4884a20211bf545843a
Author: Merlijn Wajer <merlijn@wizzup.org>
Date:   Thu May 10 17:22:01 2012 +0200

    Call OnDetach only in TMPlugins.

commit f1aa32e212d9058e94ed393ac4409c98690491ac
Author: Merlijn Wajer <merlijn@wizzup.org>
Date:   Thu May 10 16:45:49 2012 +0200

    More plugin work.

commit dee063e517c838cf95112501d2678f8facce09b1
Author: Merlijn Wajer <merlijn@wizzup.org>
Date:   Thu May 10 16:13:30 2012 +0200

    Initial plugin rework.
Add cdCdecl for default to mmlpsthread.
Merge pull request #104 from Dgby714/BenSucks

Simba: Changed the plugin memmgr notification to a Debugln.
Update lape head.
Merge branch 'master' of github.com:MerlijnWajer/Simba
Fix FilterPointsPie.

Signed-off-by: Bart de Boer <user@764-SP1.(none)>
Lape functions -> cdecl.
Update lape head.
Lape: Add plugin loading with libffi.
Lape: Free TList Wrappers as well.
Theoretically prevent double plugin bug.

And removed comment from mmlpsthread.
Update Makefile for lpffi.
Fix Makefile.
Update plugin example.
Fix several hangs/bugs on exit.
Simba: TPathSetting fix
Added a check if its a file before appending the path delimeter.
Added a TPathSetting.GetDefValue, as TStringSetting conflicted by using FValue instead of Value.
  - This also fixes our Extention bug
Merge pull request #105 from Dgby714/TPathSetting

Simba: TPathSetting fix
Simba: Renamed TPathSetting, Created a new TPathSetting.
 - Renamed TPathSetting to TFileSetting and removed the file check.
 - Added a TPathSetting that inherits TFileSetting and includes the path delimeter.