Update pe recipe

* Add somewhat more useful description.
* PROVIDES: cmd:Pe -> app:Pe
* Move haiku_devel from BUILD_PREREQUIRES to BUILD_REQUIRES.

haiku-apps/pe/pe-2.4.3_hg615.recipe

@@ -1,5 +1,7 @@
 SUMMARY="A programmer's editor"
-DESCRIPTION="A programmer's editor"
+DESCRIPTION="Pe is a native programmer's editor for Haiku. It features syntax
+highlighting and a structural view for several programming language, as well
+as basic support for Makefile and Jamfile project management."
 HOMEPAGE="http://pe-editor.berlios.de/"
 LICENSE="
 	BSD (4-clause)
@@ -12,12 +14,12 @@ COPYRIGHT="
 	"
 
 SRC_URI="hg+http://hg.berlios.de/repos/pe-editor#615"
-REVISION="1"
+REVISION="2"
 ARCHITECTURES="x86_gcc2 x86 x86_64"
 
 PROVIDES="
 	pe = $portVersion
-	cmd:Pe = $portVersion compat >= 2
+	app:Pe = $portVersion compat >= 2
 	cmd:lpe = $portVersion compat >= 2
 	"
 
@@ -28,12 +30,12 @@ REQUIRES="
 	"
 
 BUILD_REQUIRES="
+	haiku_devel
 	devel:libpcre
 	devel:libpcreposix
 	"
 
 BUILD_PREREQUIRES="
-	haiku_devel
 	cmd:bison
 	cmd:flex
 	cmd:gcc
@@ -45,8 +47,6 @@ USER_SETTINGS_FILES="
 	settings/pe directory
 	"
 
-SOURCE_DIR="$portVersionedName"
-
 BUILD()
 {
 	jam -q