[birt-dev]CheckIn: Fix Bugzilla Bug 147241 --- report runner error:SEVER

["Wei Wang" <wwang@xxxxxxxxxxx>]

Title: [birt-dev]CheckIn: Fix Bugzilla Bug 147241 --- report runner error:SEVERE: unsupport report document tagreportdocument version 1.2.1.RC4

- Summary:
Fix Bugzilla Bug  147241 --- report runner error:SEVERE: unsupport report document tagreportdocument version 1.2.1.RC4

- Bugzilla Bug (s) Resolved:
147241

- Description:
We only support report document's version as follow:
        - 1.0.0
        - 1.2.1.

From 1.2.1RC4, we support new version: 1.2.1.RC4.

- Tests Description  :
Manual-Test

- Notes to Build Team:
None

- Notes to Developers:
None

- Notes to QA:  
 None

- Notes to Documentation:  
None

- Files Edited:
"/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/ReportDocumentReader.java"#22 edit

- Files Added:
None

- Files Deleted
None

- Wei Wang