remove pharo4&5 and fix test loading

.travis.yml

@@ -14,10 +14,6 @@ before_script:
   - "java -Dwebdriver.chrome.driver=chromedriver -Dwebdriver.chrome.logfile=\"${TRAVIS_BUILD_DIR}/chromedriver.log\" -Dwebdriver.chrome.args=--verbose -jar ${TRAVIS_BUILD_DIR}/selenium-server-standalone-3.141.59.jar -port 4444 -log ${TRAVIS_BUILD_DIR}/seleniumlog.txt &"
   - "sleep 3" #allow for all processes to start before testing
 
-aliases:
-  - &pharo4-has-latest-metacello
-    smalltalk_config: .pharo4.ston
-
 matrix:
   allow_failures:
     - smalltalk: Squeak-trunk
@@ -34,11 +30,6 @@ matrix:
       env: BUILD_NAME=Pharo64-7.0
     - smalltalk: Pharo-6.1
       env: BUILD_NAME=Pharo-6.1
-    - smalltalk: Pharo-5.0
-      env: BUILD_NAME=Pharo-5.0
-    - smalltalk: Pharo-4.0
-      env: BUILD_NAME=Pharo-4.0
-      <<: *pharo4-has-latest-metacello
 
     - smalltalk: Squeak-trunk
       env: BUILD_NAME=Squeak-trunk

scripts/loadParasolAndTests.st

@@ -8,6 +8,7 @@ Metacello new
  load: #('default').
 Metacello image
  baseline:'Seaside3';
+ onConflictUseLoaded;
  load: #('Parasol-Tests').
 "Commit if executing this on GemStone, save the image on other platforms"
 (Smalltalk at: #System ifAbsent:[ nil ])