to match upstream/master
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/ui/js/Api.js
	test/src/ui/js/test_Api.js
add folder to store images for wiki pages, plus some images
Merge pull request #780 from ManvilleFog/wikipics

Wikipics
* custom PMD ruleset which should have identical behavior to our previous default
* customize PMD rulesets
* exclude ExcessiveClassComplexity not ExcessiveClassLength
* also exclude ExcessiveClassLength
Merge branch 'master' of github.com:buttonmen-dev/buttonmen into 417_jenkins_pmd
Merge pull request #782 from cgolubi1/417_jenkins_pmd

jenkins pmd customization