Include selenium version in build info for java

Author: shs96c

java/client/src/org/openqa/selenium/BUCK

@@ -52,6 +52,7 @@ java_library(name = 'core',
      'internal/FindsBy*.java',
      'mobile/*.java',
   ]),
+  manifest_file = ':manifest',
   deps = [
     ':beta',
     ':exceptions',
@@ -67,6 +68,12 @@ java_library(name = 'core',
   ],
 )
 
+genrule(name = 'manifest',
+  out = 'manifest.mf',
+  bash = 'printf "\nName: Build-Info\nSelenium-Version: {}\n" > $OUT'.format(SE_VERSION),
+  cmd_exe = "(echo.\necho Name: Build-Info\necho Selenium-Version: {}\n) > %OUT%".format(SE_VERSION),
+)
+
 java_library(name = 'beta',
   srcs = [ 'Beta.java' ],
   visibility = [