bump cbt requirement to latest stable

Author: benoitc

rebar_dev.config

@@ -40,7 +40,7 @@
 {deps, [
         %% btree library
         {cbt, ".*", {git, "https://bitbucket.org/refugeio/cbt.git",
-                 {tag ,"1.0.0"}}},
+                 {tag ,"1.1.0"}}},
 
         {eunit_formatters, ".*",
          {git, "git://github.com/seancribbs/eunit_formatters",