Bump version number from 0.1.3pre to 0.1.3 for the release.

im/app/module.ver

@@ -2,7 +2,7 @@ WIN32_MODULE_DESCRIPTION=Instantbird
 WIN32_MODULE_PRODUCTNAME=Instantbird
 WIN32_MODULE_NAME=Instantbird
 WIN32_MODULE_PRODUCTVERSION=0,1,3,0
-WIN32_MODULE_PRODUCTVERSION_STRING=0.1.3pre
+WIN32_MODULE_PRODUCTVERSION_STRING=0.1.3
 WIN32_MODULE_COPYRIGHT=©Instantbird, Mozilla and libpurple Developers, according to the GPL 2.0 license, as applicable.
 WIN32_MODULE_COMPANYNAME=Instantbird
 WIN32_MODULE_TRADEMARKS=Instantbird

im/config/version.txt

@@ -1 +1 @@
-0.1.3pre
+0.1.3