If Controller : Use expression by default and add a warning when the other mode is used

[asfimport]

@pmouawad (Bug 61675):
Current default using javascript evaluation break scalability of JMeter.
This feature will:

• switch this default to Expression evaluation
• Have a warning on screen showing how to use it. Warning will become red when user uncheck the right option
• Fix a bug where last settings of "Interpret Condition as Variable Expression" was used for next component due to lack of reset

OS: All

[asfimport]

@pmouawad (migrated from Bugzilla):
Author: pmouawad
Date: Fri Oct 27 09:50:06 2017
New Revision: 1813495

URL: http://svn.apache.org/viewvc?rev=1813495&view=rev
Log:
#4549 - If Controller : Use expression by default and add a warning when the other mode is used
#4549

Added:
jmeter/trunk/xdocs/images/screenshots/if_controller_expression.png (with props)
jmeter/trunk/xdocs/images/screenshots/if_controller_javascript.png (with props)
jmeter/trunk/xdocs/images/screenshots/if_controller_variable.png (with props)
Removed:
jmeter/trunk/xdocs/images/screenshots/ifcontroller.png
Modified:
jmeter/trunk/src/core/org/apache/jmeter/control/gui/IfControllerPanel.java
jmeter/trunk/src/core/org/apache/jmeter/resources/messages.properties
jmeter/trunk/src/core/org/apache/jmeter/resources/messages_fr.properties
jmeter/trunk/xdocs/changes.xml
jmeter/trunk/xdocs/usermanual/component_reference.xml