Bump version and tidy up cabal file

The changes from #6 and #7 could potentially be backwards-incompatible,
so this is a major version bump.

email-validate.cabal

@@ -1,8 +1,8 @@
 name:           email-validate
-version:        1.0.0
+version:        2.0.0
 license:        BSD3
 license-file:   LICENSE
-author:         George Pollard
+author:         George Pollard <[email protected]>
 maintainer:     George Pollard <[email protected]>
 homepage:       http://porg.es/blog/email-address-validation-simpler-faster-more-correct
 category:       Text
@@ -16,25 +16,31 @@ source-repository head
     type: git
     location: git://github.com/Porges/email-validate-hs.git
 
+source-repository this
+    type: git
+    location: git://github.com/Porges/email-validate-hs.git
+    tag: v2.0.0
+
 library
-    build-depends: base >= 4 && < 5, attoparsec >= 0.10.0, bytestring >= 0.9
+    build-depends: base >= 4 && < 5
+                 , attoparsec >= 0.10.0
+                 , bytestring >= 0.9
     ghc-options: -O2
     hs-source-dirs: src
-    exposed-modules:
-            Text.Email.Validate, Text.Email.Parser
+    exposed-modules: Text.Email.Validate
+                   , Text.Email.Parser
 
 Test-Suite Main
     type: exitcode-stdio-1.0
     main-is: Main.hs
     hs-source-dirs: tests
     test-module Test.Text.Email.Validate
     x-uses-tf: true
-    build-depends:
-        base >= 4 && < 5,
-        HUnit >= 1.2 && < 2,
-        email-validate,
-        QuickCheck >= 2.4,
-        test-framework >= 0.4.1,
-        test-framework-quickcheck2,
-        test-framework-hunit,
-        bytestring >= 0.9
+    build-depends: base >= 4 && < 5
+                 , HUnit >= 1.2 && < 2
+                 , email-validate
+                 , QuickCheck >= 2.4
+                 , test-framework >= 0.4.1
+                 , test-framework-quickcheck2
+                 , test-framework-hunit
+                 , bytestring >= 0.9