Fix WEA-170
Use softReference for dicom headers
Fix main arguments issue
Merge branch '1.2.x' of https://weasis.repositoryhosting.com/git/weasis/weasis-dev.git into 1.2.x
Fix WEA-171
Fix WEA-172
Not inheriting from DicomImageReader any more
Upgrade to dcm4che 2.0.27
Fix WEA-175
Fix WEA-176

Conflicts:
	weasis-dicom/weasis-dicom-viewer2d/src/main/java/org/weasis/dicom/viewer2d/dockable/DisplayTool.java
Fix WEA-177 and upgrade configAdmin
Upgrade felix.scr to 1.6.2 and add felix.metatype

Conflicts:
	weasis-launcher/conf/config.properties
	weasis-launcher/pom.xml
Fix WEA-178 and WEA-179
Fix SliceThickness to Double
Fix WEA-180 and ensure to close scanner stream

Conflicts:
	weasis-base/weasis-base-ui/src/main/java/org/weasis/base/ui/gui/WeasisWin.java