Rename EEditorCellDialog to EHTMLEditorCellDialog
Rename EEditorFindDialog to EHTMLEditorFindDialog
Rename EEditorHRuleDialog to EHTMLEditorHRuleDialog
Rename EEditorImageDialog to EHTMLEditorImageDialog
Rename EEditorLinkDialog to EHTMLEditorLinkDialog
Rename EEditorPageDialog to EHTMLEditorPageDialog
Rename EEditorParagraphDialog to EHTMLEditorParagraphDialog
Rename EEditorReplaceDialog to EHTMLEditorReplaceDialog
Rename EEditorSpellCheckDialog to EHTMLEditorSpellCheckDialog
Rename EEditorTableDialog to EHTMLEditorTableDialog
Rename EEditorTextDialog to EHTMLEditorTextDialog
Rename EHTMLEditor's UI file
Fix indent after EEditor -> EHTMLEditor rename
Rename test-editor to test-html-editor