Handlers updated.

I fixed the outlier Metadata categories. My preference is to stick to plugin type names for the categories, so MetadataProvider, AttributeDecoder, etc.

The ones that I might change are the custom handlers. I think Handler.Status would be better than StatusHandler, it's not consistent with that overall practice.

Apart from the noted above, this is pretty clean

Orphan Category

OpenSSL

 OpenSSL

Metadata Needs cleaned up.  Look for RED

.ArtifactMap
.AssertionValidator
.Config
.Encryption
.EntityMatcher.EntityAttributes
.EntityMatcher.RegistrationAuthority
.MessageDecoder.SAML1
.MessageDecoder.SAML1Artifact
.MessageDecoder.SAML1POST
.MessageDecoder.SAML1SOAP
.MessageDecoder.SAML2
.MessageDecoder.SAML2Artifact
.MessageDecoder.SAML2ECP
.MessageDecoder.SAML2POST
.MessageDecoder.SAML2Redirect
.MessageDecoder.SAML2SOAP
.MessageEncoder.SAML1Artifact
.MessageEncoder.SAML1POST
.MessageEncoder.SAML1SOAP
.MessageEncoder.SAML2Artifact
.MessageEncoder.SAML2ECP
.MessageEncoder.SAML2POST
.MessageEncoder.SAML2Redirect
.MessageEncoder.SAML2SOAP
.Metadata
.Metadata.Chaining
.Metadata.Folder
.MetadataFilter.EntityRoleWhiteList
.MetadataFilter.WhiteList
.MetadataFilter.Signature
.MetadataProvider
.MetadataProvider.Discoverable
.MetadataProvider.Dynamic
.MetadataProvider.LocalDynamic
.MetadataProvider.XML.
.SecurityPolicyRule.AudienceRestriction
.SecurityPolicyRule.BearerConfirmation
.SecurityPolicyRule.ClientCertAuth
.SecurityPolicyRule.Conditions
.SecurityPolicyRule.DelegationRestriction
.SecurityPolicyRule.Ignore
.SecurityPolicyRule.MessageFlow
.SecurityPolicyRule.NullSecurity
.SecurityPolicyRule.SimpleSigning
.SecurityPolicyRule.XMLSigning
.SignatureProfileValidator
.SOAPClient
.Utility.SAMLSign

XmlTooling

Looks pretty innocuous.  Capitalize Curl? (or cUrl, or libCurl).  Nothing I see a need for.

.Config
.CredentialCriteria
.CredentialResolver.Chaining
.CredentialResolver.File
.DataSealer
.Decrypter
.KeyInfoResolver.Inline
.KeyResolver.Inline
.libcurl
.libcurl.InputStream
.Logging
.ParserPool
.PathValidator.PKIX
.ReplayCache
.SecurityHelper
.Signature
.Signature.Debugger
.SOAPClient
.SOAPTransport.CURL
.StorageService
.StorageService.MEMCACHE
.StreamInputSource
.Threads
.TrustEngine.Chaining
.TrustEngine.ExplicitKey
.TrustEngine.PKIX
.TrustEngine.StaticPKIX
.util.CloneInputStream
.XMLHelper
.XMLObject
.XMLObject.Builder
.XMLObject.Signature

Shibboleth

Do we care about AttributeDecoded as opposed to Attribute.Decoder and so forth?  

.AccessControl.Chaining
.AccessControl.XML
.Application
.ArtifactResolution.SAML2
.ArtifactResolver
.AssertionLookup
.Attribute.NameID
.AttributeCheckerHandler
.AttributeDecoder.Base64
.AttributeDecoder.DOM
.AttributeDecoder.KeyInfo
.AttributeDecoder.NameID
.AttributeDecoder.NameIDFromScoped
.AttributeDecoder.Scoped
.AttributeDecoder.String
.AttributeDecoder.XML
.AttributeExtractor.Chaining
.AttributeExtractor.Delegation
.AttributeExtractor.GSSAPI
.AttributeExtractor.XML
.AttributeFilter
.AttributeFilter.Chaining
.AttributeFilter.Dummy
.AttributeResolver.Chaining
.AttributeResolver.CaseFolding
.AttributeResolver.Query
.AttributeResolver.SimpleAggregation
.AttributeResolver.Template
.AttributeResolver.Transform
.AttributeResolverHandler
.Config
.DiscoveryFeed
.ExternalAuth
.Handler
.IPRange
.ISAPI
.Listener
.Logout
.Logout.ADFS
.Logout.SAML2
.LogoutInitiator.ADFS
.LogoutInitiator.Chaining
.LogoutInitiator.Local
.LogoutInitiator.SAML2
.MessageDecoder.ADFS
.MetadataGenerator
.MetadataProvider.Dynamic
.NameIDMgmt.SAML2
.PropertySet
.ProtocolProvider.XML
.RequestMapper
.SecurityPolicyProvider.XML
.ServiceProvider
.SessionCache
.SessionHandler
.SessionInitiator
.SessionInitiator.ADFS
.SessionInitiator.Chaining
.SessionInitiator.Cookie
.SessionInitiator.Form
.SessionInitiator.SAML2
.SessionInitiator.SAMLDS
.SessionInitiator.Shib1
.SessionInitiator.Transform
.SessionInitiator.WAYF
.SOAPClient
.SPRequest
.SSO.ADFS
.SSO.SAML1
.SSO.SAML2
.StatusHandler
.Utilities.ResolverTest
.Utility.MDQuery
.Utility.ResolverTest

Work here is to get a list of the categories we have and circulate it for discussion

I made a quick fix to the one MetadataProvider with an inconsistent category. I'm ok moving the filter categories but in the interest of not making gratuitous changes, rescheduling that for 3.0.