SOAP-271 - Update maven plugin for 4.5.2

* Add exclusions for the Maven plugin
* Rename the Maven plugin artifact name (SOAP-92)
* Minor clean up
Fix remove matrix params from resource path
Add null check
Revert "SOAP-461: Add UTF8 as default file encoding"

This reverts commit e1f7033c50aee54a34e6e345748841f6ecbb472e.

Conflicts:
	soapui-installer/src/dist/bin/soapui.bat
	soapui-installer/src/dist/bin/soapui.sh
	soapui-installer/src/dist_standalone/bin/soapui.bat
	soapui-installer/src/dist_standalone/bin/soapui.sh
	soapui-installer/src/install4j/SoapUI.install4j
Popup from parameters field - work in progress SOAP-726
Work in progress SOAP-726
Fixed compilation problem after merge SOAP-726
Bind popup parameter field to query field
Show all parameters on parameters field
Update aprams field when model changes
Popup, but unable to gain input focus! SOAP-726
Using popup window instead SOAP-726
Fixed parameter selection (TODO: understand click in param value) SOAP-726
Made parameters dialog truly modal SOAP-726
Interprets clicks in parameter values correctly SOAP-726
Fixed problems caused by "dummy" caret events SOAP-726
Fixed problems caused by "dummy" caret events SOAP-726
Click at end of parameters field now handled correctly SOAP-726
SOAP-652: Replace soapUI with SoapUI
SOAP-652: Fixed assembly artifact names