Do not colorize tree output

Because pagers other than less might not handle ansi escape codes well
(example `view -`).

Author: Bruno Sutic

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Changelog
 
 ### master
+- do not colorize `tree` output because a pager application might not handle it
+  well
 
 ### v0.7.0, Sep 05, 2014
 - bugfix: invalid params for 'save_sidebar_width' script

scripts/variables.sh

@@ -9,7 +9,7 @@ TREE_OPTION="@sidebar-tree"
 TREE_FOCUS_KEY="Bspace"
 TREE_FOCUS_OPTION="@sidebar-tree-focus"
 
-TREE_COMMAND="tree -C"
+TREE_COMMAND="tree"
 TREE_COMMAND_OPTION="@sidebar-tree-command"
 
 TREE_PAGER="LESS= less --dumb --chop-long-lines --tilde --IGNORE-CASE --RAW-CONTROL-CHARS"