Merge pull request #205 from deiga/add-current-command

Added command to get current nvm environment.

nvm.sh

@@ -441,6 +441,9 @@ nvm() {
         print_versions "`nvm_ls_remote $2`"
         return
     ;;
+    "current" )
+      echo -ne "current: \t"; nvm_version current
+    ;;
     "alias" )
       mkdir -p $NVM_DIR/alias
       if [ $# -le 2 ]; then

test/fast/Running "nvm current" should display current nvm environment.

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+[[ $(nvm current) == *"current"* ]] || die "Failed to find current version"