- fix strip column datatype

- fix cr_tree_rewrite function, use the specfified tree instead of the defaul
  closes Bug #1803444
- add a comment about the difference between internal and external IDs


git-svn-id: https://openser.svn.sourceforge.net/svnroot/openser/trunk@2830 689a6050-402a-0410-94f2-e92a70836424

lib/srdb1/schema/carrierroute.xml

@@ -60,7 +60,7 @@
 		  
 		  <column>
 			  <name>strip</name>
-			  <type>string</type>
+			  <type>unsigned int</type>
 			  <size>&flag_len;</size>
 			  <default>0</default>
 			  <description>Name of the column containing the number of digits to be stripped of the userpart of an URI before prepending rewrite_prefix.</description>