restructure files, working make doc and make release

tools/git-version.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# add git revision to autojump
+
+# Fail silently if there is no git directory, ie. if the user installed from a regular download
+if [[ ! -d .git ]]; then
+    exit
+fi
+
+if [ -z "$1" ]; then
+    gitrevision=`git describe`
+    if [[ $(git diff --shortstat 2> /dev/null | tail -n1) != "" ]]; then
+        gitrevision=$gitrevision"-dirty"
+    fi
+else
+    gitrevision="$1"
+fi
+
+sed -i "s/^AUTOJUMP_VERSION = \".*\"$/AUTOJUMP_VERSION = \"$gitrevision\"/" ./bin/autojump