Various flaws in "Add Identity Provider" wizard

There are various flaws in "Add Identity Provider" wizard

General issues

1. The meaning of alias field is unclear, it seems that this field is usually referenced as "Name" for other resources (it is the name of resource node in management model). However for internal IDP this is also a name of the deployment containing IDP.
2. The "alias" select box is in fact not working (or I did not figure out how to make it work) . I suppose that this selectbox should be listing currently enabled deployments – this will be more complicated in domain. This can be observed on attached screenshot "console-picketlink-alias-select"

As this is a first version of picketlink extension I propose we keep things simple and use just a regular text input for "Alias" field and rename it to "Name"

Adding external IDP specific issues

1. It should not be possible to finish empty wizard (a default url which seems to be derived form current url is generated, however this seems unexpected).
2. I should be able to set an alias/name for this idp
3. Adding external IDP with specified URL will result in the name displayed on attached screenshot "console-picketlink-external-idp-added"