tidy up for public access, insert converter for repo change

qcd_function

@@ -1,4 +1,5 @@
 function cd_history () {
+    # Function that replaces "cd". It stores visited folder in ~/.bash_cdhistory
     local old
     local p
     local b
@@ -17,6 +18,7 @@ function cd_history () {
 alias cd=cd_history
 
 function hcd() {
+    # History cd. Run without arguments to see list of entries, give number to change cwd.
     local d
 
     if [ -z "$1" ]
@@ -31,6 +33,7 @@ function hcd() {
 }
 
 function qcd() {
+    # cd command, that jumps to folders visited in the near history, or user bookmarked folders
     local OPTIND
     local OPTARG
     local opt
@@ -156,6 +159,7 @@ Keeps a history of folders visited in ~/.bash_cdhistory
 }
 
 function whenfilechanges() {
+    # Run a command when file(s) time stamp changes
     echo "Version: 2015-10-13"
     [ -z "$2" ] && { echo 'Usage: whenfilechanges "file" "some" "command" 
       Follows the modification time of the "file" and runs the command 
@@ -202,7 +206,7 @@ function whenfilechanges() {
 }
 
 function gcd() {
-# guess cd,  find first match in folder, or ask if multiple hits
+    # guess cd,  find first match in folder, or ask if multiple hits
     local cdto
     { cdto=$( python -c '
 import sys,os,re
@@ -278,7 +282,7 @@ sys.stderr.write(os.path.join(pat_dir,key_match))
 }
 
 function rmv () {
-#mv with rsync 
+    # mv files/folders with rsync (shows speed and progress)
     local sources
     sources=()
     # remove / from ends, if target is an existing folder
@@ -329,6 +333,7 @@ function ised () {
 }
 
 function foldermenu_prompt {
+    # Function to add in PS prompt variable, enabling foldermenu support
     [ -f .foldermenu ] && {
       foldermenu -lf 10 $@ || echo -n "*"
     } || { 
@@ -337,12 +342,10 @@ function foldermenu_prompt {
 }
 
 function _tools-update {
+    # update self
+    [[ -z "$TOOLSPATH" ]] || return
     [[ -w "$TOOLSPATH" ]] || return
-    touch "$TOOLSPATH"/.lastupdate
-    [[ -w "$TOOLSPATH"/.lastupdate ]] || return
-    pushd "$TOOLSPATH" > /dev/null
-    hg pull -u 2>&1 
-    popd > /dev/null
+    "$TOOLSPATH"/rc -u
 }
 
 function qbg {
@@ -360,6 +363,7 @@ function set_term_title {
 }
 
 function path_add_current {
+    # Add current folder to PATH
     export PATH=$( echo $(pwd):$PATH | awk -F: '{for (i=1;i<=NF;i++) { if ( !x[$i]++ ) printf("%s:",$i); }}' | sed 's,:\+$,,g' )
     echo PATH=$PATH
 }