Global version file is now `${RBENV_ROOT}/version`

This is the last time it'll change. Promise.

.gitignore

@@ -1,3 +1,3 @@
-/versions
 /shims
-/global
+/version
+/versions

libexec/rbenv-global

@@ -9,12 +9,13 @@ if [ "$1" = "--complete" ]; then
 fi
 
 RBENV_VERSION="$1"
-RBENV_VERSION_FILE="${RBENV_ROOT}/global"
+RBENV_VERSION_FILE="${RBENV_ROOT}/version"
 
 if [ -n "$RBENV_VERSION" ]; then
   rbenv-version-file-write "$RBENV_VERSION_FILE" "$RBENV_VERSION"
 else
   rbenv-version-file-read "$RBENV_VERSION_FILE" ||
+  rbenv-version-file-read "${RBENV_ROOT}/global" ||
   rbenv-version-file-read "${RBENV_ROOT}/default" ||
   echo system
 fi

libexec/rbenv-version-file

@@ -11,13 +11,14 @@ while [ -n "$root" ]; do
   root="${root%/*}"
 done
 
-GLOBAL_PATH="${RBENV_ROOT}/global"
-DEFAULT_PATH="${RBENV_ROOT}/default"
+global_version_file="${RBENV_ROOT}/version"
 
-if [ -e "$GLOBAL_PATH" ]; then
-  echo "$GLOBAL_PATH"
-elif [ -e "$DEFAULT_PATH" ]; then
-  echo "$DEFAULT_PATH"
+if [ -e "$global_version_file" ]; then
+  echo "$global_version_file"
+elif [ -e "${RBENV_ROOT}/global" ]; then
+  echo "${RBENV_ROOT}/global"
+elif [ -e "${RBENV_ROOT}/default" ]; then
+  echo "${RBENV_ROOT}/default"
 else
-  echo "$GLOBAL_PATH"
+  echo "$global_version_file"
 fi