diff --git a/ext/launch4j/bin/ld b/ext/launch4j/bin/ld
index abfe216b..2e2983e8 100755
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diff --git a/ext/launch4j/bin/ld.exe b/ext/launch4j/bin/ld.exe
index ab5ece81..5985c0e2 100644
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diff --git a/ext/launch4j/bin/windres b/ext/launch4j/bin/windres
index d622bd0a..5b83b934 100755
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diff --git a/ext/launch4j/bin/windres.exe b/ext/launch4j/bin/windres.exe
index 4a5a6129..855b195b 100644
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diff --git a/ext/launch4j/head/LICENSE.txt b/ext/launch4j/head/LICENSE.txt
index 1f8f12fd..e95c830a 100644
--- a/ext/launch4j/head/LICENSE.txt
+++ b/ext/launch4j/head/LICENSE.txt
@@ -1,23 +1,26 @@
-Copyright (c) 2004, 2007 Grzegorz Kowal
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-Except as contained in this notice, the name(s) of the above copyright holders
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+Launch4j (http://launch4j.sourceforge.net/)
+Cross-platform Java application wrapper for creating Windows native executables.
+
+Copyright (c) 2004, 2015 Grzegorz Kowal
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+Except as contained in this notice, the name(s) of the above copyright holders
+shall not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
\ No newline at end of file
diff --git a/ext/launch4j/head/consolehead.o b/ext/launch4j/head/consolehead.o
index 739d9767..60bb62f6 100644
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diff --git a/ext/launch4j/head/guihead.o b/ext/launch4j/head/guihead.o
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diff --git a/ext/launch4j/head/head.o b/ext/launch4j/head/head.o
index b87fbde6..d5d63d66 100644
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diff --git a/ext/launch4j/launch4j.jar b/ext/launch4j/launch4j.jar
index 3c0b0e0b..6daad70f 100644
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