SWE-2 / SP-263: Fixed delays and bugs of browser grid parsing

...urce/java/ch/systemsx/cisd/openbis/uitest/SampleTest.java

...java/ch/systemsx/cisd/openbis/uitest/infra/Browsable.java

...a/ch/systemsx/cisd/openbis/uitest/infra/SeleniumTest.java

...nbis/uitest/infra/matcher/BrowserListsElementMatcher.java

...openbis/uitest/infra/matcher/CellContainsLinkMatcher.java

...ava/ch/systemsx/cisd/openbis/uitest/page/BrowserPage.java

...ource/java/ch/systemsx/cisd/openbis/uitest/page/Cell.java

...ource/java/ch/systemsx/cisd/openbis/uitest/page/Page.java

.../cisd/openbis/uitest/page/dialog/AddVocabularyDialog.java

.../systemsx/cisd/openbis/uitest/page/tab/SampleBrowser.java

...java/ch/systemsx/cisd/openbis/uitest/type/Experiment.java

...ce/java/ch/systemsx/cisd/openbis/uitest/type/Project.java

...va/ch/systemsx/cisd/openbis/uitest/type/PropertyType.java

...emsx/cisd/openbis/uitest/type/PropertyTypeAssignment.java

...rce/java/ch/systemsx/cisd/openbis/uitest/type/Sample.java

...java/ch/systemsx/cisd/openbis/uitest/type/SampleType.java

...urce/java/ch/systemsx/cisd/openbis/uitest/type/Space.java

...java/ch/systemsx/cisd/openbis/uitest/type/Vocabulary.java