Fixed double negative, and removed old uninstall stage that deleted symbolic...

Fixed double negative, and removed old uninstall stage that deleted symbolic links that are no longer used.

configure/modules/RULES_E3

@@ -38,7 +38,6 @@ install_module: db
 ## Uninstall : $(E3_MODULE_NAME)
 uninstall: conf
 	$(QUIET) $(SUDOBASH) '$(E3_MODULE_MAKE_CMDS) uninstall'
-	$(SUDO) find $(E3_SITELIBS_PATH) -xtype l -delete 
 
 cellinstall: install_module
 
@@ -71,7 +70,7 @@ conf: module_name_check
 
 ## We should check that the module name satisfies a few conditions before we go on.
 module_name_check:
-ifneq ($(shell echo $(E3_MODULE_NAME) | grep '^[a-z_][a-z0-9_]\+$$' &> /dev/null; echo $$?),1)
+ifneq ($(shell echo $(E3_MODULE_NAME) | grep '^[a-z_][a-z0-9_]\+$$' &> /dev/null; echo $$?),0)
 	$(error E3_MODULE_NAME '$(E3_MODULE_NAME)' is not valid. It should consist only of lowercase letters, numbers, and underscores.)
 endif