fix xslt module context levels

src/http/modules/ngx_http_xslt_filter_module.c

diff --git a/src/http/modules/ngx_http_xslt_filter_module.c b/src/http/modules/ngx_http_xslt_filter_module.c
index ac52b55..7165fc8 100644
--- a/src/http/modules/ngx_http_xslt_filter_module.c
+++ b/src/http/modules/ngx_http_xslt_filter_module.c
@@ -131,21 +131,21 @@
 static ngx_command_t  ngx_http_xslt_filter_commands[] = {
 
     { ngx_string("xml_entities"),
-      NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1,
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
       ngx_http_xslt_entities,
       NGX_HTTP_LOC_CONF_OFFSET,
       0,
       NULL },
 
     { ngx_string("xslt_stylesheet"),
-      NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_1MORE,
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
       ngx_http_xslt_stylesheet,
       NGX_HTTP_LOC_CONF_OFFSET,
       0,
       NULL },
 
     { ngx_string("xslt_types"),
-      NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_1MORE,
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
       ngx_http_types_slot,
       NGX_HTTP_LOC_CONF_OFFSET,
       offsetof(ngx_http_xslt_filter_conf_t, types_keys),