* Fixed lsmod calling on systems different from Linux.

* fbterm check now runs only on Linux and if lsmod is available.
* Added OS and OS_RELEASE vars.
* Themes now should also ends with .zsh.

zsh/40-prompt.zsh

@@ -4,8 +4,8 @@ autoload -Uz promptinit
 promptinit
 
 if [ "${PROMPT_THEME}" != "" ]; then
-    if [ -f ${CONFIG_PATH}/zsh/prompts/${PROMPT_THEME}.zsh-theme ]; then
-        source ${CONFIG_PATH}/zsh/prompts/${PROMPT_THEME}.zsh-theme
+    if [ -f ${CONFIG_PATH}/zsh/prompts/${PROMPT_THEME}.zsh ]; then
+        source ${CONFIG_PATH}/zsh/prompts/${PROMPT_THEME}.zsh
     else
         echo "Theme \"${PROMPT_THEME}\" could not be loaded. File does not exist or unreadable."
     fi