[BACKLOG-186] - Need to provide user with a decent message when the repository is not availabe

since the UI is formed so that it's impossible to perform centralized error handling
it was decided to find as many places as it's only possible and implement the check

the check checks that Cause-chain contain KettleRepositoryLostException.
if it happens standard Spoon ErrorDialog is displayed, then current form is closed
and at last a command is issued to spoon to close the current repository connection.
[BACKLOG-186] - Need to provide user with a decent message when the repository is not availabe

- KettleRepositoryLostException.java add copyright comment
- TransDialog.java add check for the case of saving newly created transformation
Merge pull request #760 from mtseu/backlog-186-master

[BACKLOG-186] - Need to provide user with a decent message when the repo...
[BACKLOG-179] Errors executing JobEntryTrans/JobEntryJob after export/import
Merge pull request #765 from mdamour1976/master

[BACKLOG-179] Errors executing JobEntryTrans/JobEntryJob after export/import
BACKLOG-337 - fix for unit test
[BACKLOG-684] - Updated documentation header from 5.1 to 5.2
Merge pull request #771 from brendan-lynch/master

[BACKLOG-684] - Updated documentation header from 5.1 to 5.2
Merge pull request #768 from SergeyTravin/BACKLOG-337T

BACKLOG-337 - fix for unit test
[TEST] - adding tests
- AutoDocMetaTest
- KettleReportBuilderTest
- JobEntryLoadSaveTestSupport
- JobEntryAbortLoadSaveTest
- JobEntryAddResultFilenamesLoadSaveTest
- JobEntrySimpleEvalLoadSaveTest
- JobEntryCheckFilesLocked & JobEntryCheckFilesLockedLoadSaveTest
- JobEntryConnectedToRepositoryLoadSaveTest
- JobEntryCopyFiles & JobEntryCopyFilesLoadSaveTest
- JobEntryDeleteFolders & JobEntryDeleteFoldersLoadSaveTest
- JobEntryDeleteFiles & JobEntryDeleteFilesLoadSaveTest
- JobEntryDeleteFile & JobEntryDeleteFileLoadSaveTest
- JobEntryCreateFolder & JobEntryCreateFolderLoadSaveTest
- JobEntryDelay & JobEntryDelayLoadSaveTest
- JobEntryCreateFile & JobEntryCreateFileLoadSaveTest
-    and stuff...