fix google Issue 184: github zip download failures due to filesystem issues
banish Pharo-3.0 from the lineup until it starts giving us useful error messages
fix Issue #175: MCGitHubRepository and cache
fix Issue #170: location of ConfigurationOfOsProcess for Pharo2.0+ changed
remove Squeak2.4.5 from lineup
restore GemStone-2.4.5 and remove Squeak4.5 from the lineup ... I must have been punch drunk for that last commit
Merge pull request #178 from demarey/master

Add Pharo3.0 support. Update ProfStef repo to use SmalltalkHub....Pharo-3.0 and Squeak4.5 are the only failed builds and they are expected failures at this point in time
fix for Issue #176
checkpoint Issue #174: working on getting test case to run

also working on toolbox baseline support
Issue #174: fix the fix...
Issue #174: finer tuning
rewrite MetacelloRepositoryGemStoneTestCase>>testFileTreeRepository to create directory before creating repository
some more tweaks for FileTree test
rewrite MetacelloRepositoryGemStoneTestCase>>testFileTreeRepository to create directory before creating (for Squeak/Pharo)
#fullName is a more portable choice
restore MetacelloTestsMCPackage>>packageInfo...test timeout for squeak is too short
Issue #175: MCGitHubRepository class>>cacheDirectory: can be used to esplicitly set the github cache directory ... if cacheDiretory is non-existent the default cache directory is used ... added tests
preparing to split test suite into two bits to avoid the 30 minute time limit
split TravisCI group into two sub-groups: TravisCI_1 and TravisCI_2 to avoid going over 30 minute limit
update .travis.yml to use TravisCI_1 and TravisCI_2 groups