FLUDI-4740: Removes support for building WAR files with Maven from the Infusion build system.
Merge branch 'master' into FLUID-4740
FLUID-4740: Removed webapp/ directory.
FLUID-4740: Removed the mentioning of maven, fixed the wiki page for "infusion custom build" and restored the links to the ancient code with "webapp/" in place.
FLUID-4740: Fixed the relative path to "build-scripts" directory.
Merge remote-tracking branch 'cindyli/FLUID-4740'

* cindyli/FLUID-4740:
  FLUID-4740: Fixed the relative path to "build-scripts" directory.
  FLUID-4740: Removed the mentioning of maven, fixed the wiki page for "infusion custom build" and restored the links to the ancient code with "webapp/" in place.
  FLUID-4740: Removed webapp/ directory.
  FLUDI-4740: Removes support for building WAR files with Maven from the Infusion build system.
Merge branch 'master' of git://github.com/fluid-project/infusion into FLUID-5101

Conflicts:
	src/lib/jquery/ui/css/fl-theme-dglg/images/ui-bg_flat_100_343434_40x100.png
	src/lib/jquery/ui/css/fl-theme-dglg/images/ui-icons_343434_256x240.png
	src/lib/jquery/ui/css/fl-theme-lgdg/images/ui-bg_flat_0_343434_40x100.png
	src/lib/jquery/ui/css/fl-theme-lgdg/images/ui-bg_flat_100_343434_40x100.png
	src/lib/jquery/ui/css/fl-theme-lgdg/images/ui-icons_343434_256x240.png