CodeSnip Old Code (SVN)

Added new ICompilers.HaveDisplayable method and implementation.
Also some minor tweaks.

Changed so that each compiler has a value indicating if its results are to be displayed in UI etc.
Updated TPersistCompilers to store this new information with settings.

Standardised svn:mime-type properties to "text/pascal" and svn:eol-style to "native"

Reintegrated v4-dev branch into trunk.
Trunk now contains v4 development tree

* Moved all units directly concerned with supporting installed compilers into the new "Compilers" namespace. Some units were further renamed.
* Revised using units to use the new names.