Corrected copyright in file headers

Apparently I cannot spell my last name.

bin/shspec

@@ -1,7 +1,7 @@
 #!/bin/bash
 # shspec BDD CLI
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

src/expect.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Core expectations
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

src/expect/env.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Environment expectations
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

src/expect/output.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Output expectations
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

src/spec.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Specification language
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

src/specstack.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Parser stack
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

src/util.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Utility functions/procedures
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

test/test-expect-core

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Core expectation tests
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

test/test-expect-env

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Environment expectation tests
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

test/test-spec

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Specification DSL test
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #

test/test-util

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Utility function/procedure tests
 #
-#  Copyright (C) 2014 Mike Gewitz
+#  Copyright (C) 2014 Mike Gerwitz
 #
 #  This file is part of shspec.
 #