REORG: ebtree: clean up remains of the ebtree/ directory
The only leftovers were the unused compiler.h file and the LICENSE file
which is already mentioned in each and every ebtree file header.
A few build paths were updated in the contrib/ directory not to mention
this directory anymore, and all its occurrences were dropped from the
main makefile. From now on no other include path but include/ will be
needed anymore to build any file.
diff --git a/contrib/debug/Makefile b/contrib/debug/Makefile
index 385e0d1..74dd6ac 100644
--- a/contrib/debug/Makefile
+++ b/contrib/debug/Makefile
@@ -1,4 +1,4 @@
-INCLUDE = -I../../include -I../../ebtree
+INCLUDE = -I../../include
CC = gcc
OPTIMIZE = -O2