Rename checkbin to checkbins (because it checks multiple binaries) and set svn properties.

TBR=maruel
BUG=25952
Review URL: http://codereview.chromium.org/345015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30372 0039d316-1c4b-4281-b951-d872f2087c98

tools/checkbin/checkbin.bat → tools/checkbins/checkbins.bat

 @echo off
 setlocal
 set PYTHONPATH=%~dp0..\..\third_party\pefile;%PYTHONPATH%
-%~dp0..\..\third_party\python_24\python.exe %~dp0checkbin.py %*
+%~dp0..\..\third_party\python_24\python.exe %~dp0checkbins.py %*

tools/checkbin/checkbin.sh → tools/checkbins/checkbins.sh

@@ -6,4 +6,4 @@
 # Include pefile in the path.
 PYTHONPATH="$(dirname $0)/../../third_party/pefile:$PYTHONPATH"
 export PYTHONPATH
-python "$(dirname $0)/checkbin.py" "$@"
+python "$(dirname $0)/checkbins.py" "$@"