[birt-dev] Checkin: Bugzilla# - Fix a ClassNotFoundException when previe

["Yulin Wang" <yulin.wang@xxxxxxxxxxx>]

- Summary:
Fix a ClassNotFoundException when previewing chart with script

- Bugzilla Bug (s) Resolved:

- Description:
Fix a ClassNotFoundException when previewing chart with script.
Caused by internal classes not being exposed in bundle manifest.

- Tests Description: Manual Test

- Notes to Build Team: N/A

- Notes to Developers: N/A

- Notes to QA: N/A

- Notes to Documentation: N/A

- Files Edited:

/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/factory/Generator.java

- Files Added:

/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/script/ChartScriptContext.java

- Files Deleted

/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/internal/script/ChartScriptContext.java