Merge branch 'handle_quoted_etags' into JCLOUDS-251

This is to avoid the following exception during live testing:
** containers to test: [francis-blobstore0, francis-blobstore1, francis-blobstore2, francis-blobstore3, francis-blobstore4, francis-blobstore5, francis-blobstore6, francis-blobstore7, francis-blobstore8, francis-blobstore9]
java.lang.IllegalArgumentException: java.io.IOException: Unrecognized character: "
	at com.google.common.io.BaseEncoding.decode(BaseEncoding.java:237)
	at org.jclouds.openstack.swift.blobstore.functions.ResourceToObjectInfo.apply(ResourceToObjectInfo.java:51)
	at org.jclouds.openstack.swift.functions.ParseObjectInfoFromHeaders.apply(ParseObjectInfoFromHeaders.java:59)
	at org.jclouds.openstack.swift.functions.ParseObjectInfoFromHeaders.apply(ParseObjectInfoFromHeaders.java:41)
	at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.invoke(InvokeSyncToAsyncHttpMethod.java:131)
	at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.apply(InvokeSyncToAsyncHttpMethod.java:97)
	at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.apply(InvokeSyncToAsyncHttpMethod.java:58)
	at org.jclouds.rest.internal.DelegatesToInvocationFunction.handle(DelegatesToInvocationFunction.java:157)
	at org.jclouds.rest.internal.DelegatesToInvocationFunction.invoke(DelegatesToInvocationFunction.java:124)
	at com.sun.proxy.$Proxy62.getObjectInfo(Unknown Source)
	at org.jclouds.openstack.swift.blobstore.SwiftBlobStore.getObjectManifest(SwiftBlobStore.java:241)
	at org.jclouds.openstack.swift.blobstore.SwiftBlobStore.removeBlob(SwiftBlobStore.java:232)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.google.inject.internal.DelegatingInvocationHandler.invoke(DelegatingInvocationHandler.java:37)
	at com.sun.proxy.$Proxy66.removeBlob(Unknown Source)
	at org.jclouds.cloudfiles.blobstore.integration.CloudFilesBlobIntegrationLiveTest.testChunksAreDeletedWhenMultipartBlobIsDeleted(CloudFilesBlobIntegrationLiveTest.java:56)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
	at org.testng.TestRunner.privateRun(TestRunner.java:767)
	at org.testng.TestRunner.run(TestRunner.java:617)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
	at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
	at org.testng.SuiteRunner.run(SuiteRunner.java:240)
	at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
	at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
	at org.testng.TestNG.runSuitesSequentially(TestNG.java:1198)
	at org.testng.TestNG.runSuitesLocally(TestNG.java:1123)
	at org.testng.TestNG.run(TestNG.java:1031)
	at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
	at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
	at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)
	at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:111)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.io.IOException: Unrecognized character: "
	at com.google.common.io.BaseEncoding$Alphabet.decode(BaseEncoding.java:504)
	at com.google.common.io.BaseEncoding$StandardBaseEncoding$2.read(BaseEncoding.java:676)
	at com.google.common.io.BaseEncoding.decode(BaseEncoding.java:233)
	... 48 more
Address pull request #123 feedback