Global modules should not be requireable, and `npm root -g` should not be in `$NODE_PATH`.

Fixes #586.

nvm.sh

@@ -790,9 +790,7 @@ nvm() {
       fi
 
       NEWPATH="$(nvm_strip_path "$NODE_PATH" "/lib/node_modules")"
-      if [ "$NODE_PATH" = "$NEWPATH" ]; then
+      if [ "$NODE_PATH" != "$NEWPATH" ]; then
-        echo "Could not find $NVM_DIR/*/lib/node_modules in \$NODE_PATH" >&2
-      else
         export NODE_PATH="$NEWPATH"
         echo "$NVM_DIR/*/lib/node_modules removed from \$NODE_PATH"
       fi
@@ -850,13 +848,8 @@ nvm() {
         MANPATH=`nvm_prepend_path "$MANPATH" "$NVM_VERSION_DIR/share/man"`
         export MANPATH
       fi
-      # Strip other version from NODE_PATH
-      NODE_PATH=`nvm_strip_path "$NODE_PATH" "/lib/node_modules"`
-      # Prepend current version
-      NODE_PATH=`nvm_prepend_path "$NODE_PATH" "$NVM_VERSION_DIR/lib/node_modules"`
       export PATH
       hash -r
-      export NODE_PATH
       export NVM_PATH="$NVM_VERSION_DIR/lib/node"
       export NVM_BIN="$NVM_VERSION_DIR/bin"
       if [ "$NVM_SYMLINK_CURRENT" = true ]; then

test/fast/Running "nvm deactivate" should unset the nvm environment variables.

@@ -8,7 +8,8 @@ die () { echo $@ ; exit 1; }
 
 . ../../nvm.sh
 nvm use v0.2.3 &&
-[ `expr $PATH : ".*v0.2.3/.*/bin"` != 0 ] && [ `expr $NODE_PATH : ".*v0.2.3/.*/lib/node_modules"` != 0 ] || die "Failed to activate v0.2.3"
+[ `expr $PATH : ".*v0.2.3/.*/bin"` != 0 ] && [ `expr $NODE_PATH : ".*v0.2.3/.*/lib/node_modules"` = 0 ] || die "Failed to activate v0.2.3"
+# ^ note: NODE_PATH should not contain `npm root -g` since globals should not be requireable
 
 nvm deactivate &&
 [ `expr $PATH : ".*v0.2.3/.*/bin"` = 0 ] && [ `expr $NODE_PATH : ".*v0.2.3/.*/lib/node_modules"` = 0 ] || die "Failed to deactivate v0.2.3"