[birt-dev] CheckIn: Bugzilla#160144 - Fixed invisible marker

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

- Summary:
Fixed invisible marker

- Bugzilla Bug (s) Resolved:
160144

- Description:
1. Rollbacked the marker change of Line/Scatter. Negative value still has the same color as before.
2. In bubble chart, only the marker with negative size has the transparent color, when it's designated as single color and with border line, otherwise, translucent grey color will be replaced.

- 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.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderer.java
/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/MarkerRenderer.java

- Files Added:

- Files Deleted