Update version to 2.0.0-pre.10

Makefile

@@ -2,7 +2,7 @@
 
 PROJECT = cowboy
 PROJECT_DESCRIPTION = Small, fast, modern HTTP server.
-PROJECT_VERSION = 2.0.0-pre.9
+PROJECT_VERSION = 2.0.0-pre.10
 PROJECT_REGISTERED = cowboy_clock
 
 # Options.

ebin/cowboy.app

@@ -1,6 +1,6 @@
 {application, 'cowboy', [
 	{description, "Small, fast, modern HTTP server."},
-	{vsn, "2.0.0-pre.9"},
+	{vsn, "2.0.0-pre.10"},
 	{modules, ['cowboy','cowboy_app','cowboy_bstr','cowboy_clear','cowboy_clock','cowboy_compress_h','cowboy_constraints','cowboy_handler','cowboy_http','cowboy_http2','cowboy_iolists','cowboy_loop','cowboy_middleware','cowboy_req','cowboy_rest','cowboy_router','cowboy_static','cowboy_stream','cowboy_stream_h','cowboy_sub_protocol','cowboy_sup','cowboy_tls','cowboy_websocket']},
 	{registered, [cowboy_sup,cowboy_clock]},
 	{applications, [kernel,stdlib,crypto,cowlib,ranch]},