[xwiki-notifications] [Issue] Created: (XWATCH-98) Add a "delete" button under tags

[Guillaume (JIRA)]

Add a "delete" button under tags
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                 Key: XWATCH-98
                 URL: http://jira.xwiki.org/jira/browse/XWATCH-98
             Project: XWiki Watch
          Issue Type: Improvement
          Components: Filters
    Affects Versions: 1.0M2
            Reporter: Guillaume
             Fix For: 1.0M3


When a tag is selected, a "delete" button is shown right under it. Clicking on this button removes the tag from the list and from all the articles it was applied to. 

Ideally, an "edit" button is available too. If an user edits the tag, its name changes in the list on thr right. Every articles tagged with Tag1 become tagged with Tag2.

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