cherry-pick the Issue #72 test case from gemstone2.4 branch
update .travis.yml to reflect current script contents and build lineup
Merge branch 'master' into squeak4.3_dev

Conflicts:
	.travis.yml
Merge branch 'pharo1.4_dev' into pharo1.4

[cherry-pick bae40145223ae4bf1d1c3177bb4aba5e4577a603]

Conflicts:

	repository/MonticelloFileTree-Tests.package/MCFileTreeIssue72Test.class/instance/categoryString.st
	repository/MonticelloFileTree-Tests.package/MCFileTreeIssue72Test.class/instance/validatePackageMetadata.st
	repository/MonticelloFileTree-Tests.package/MCFileTreeIssue72Test.class/instance/versionInfoMessageString.st
	repository/MonticelloFileTree-Tests.package/MCFileTreeIssue72Test.class/methodProperties.json
	repository/MonticelloFileTree-Tests.package/monticello.meta/version
Merge branch 'squeak4.3_dev' into squeak4.3