[BACKLOG-604] CLONE - Should not be able to create a partition on a step without a field
Merge pull request #754 from evgeniy-lyakhov/BACKLOG-604-5.2

[BACKLOG-604] CLONE - Should not be able to create a partition on a step...
Merge branch 'pdi-12622' into 5.2
[BACKLOG-604] CLONE - Should not be able to create a partition on a step without a field
[BACKLOG-604] CLONE - Should not be able to create a partition on a step without a field
Merge pull request #757 from evgeniy-lyakhov/BACKLOG-604-5.2

[BACKLOG-604] CLONE - Should not be able to create a partition on a step...
[BACKLOG-353] - putting a border on ExtMenuList
Merge pull request #759 from kurtwalker/BACKLOG-353-52

[BACKLOG-353] - putting a border on ExtMenuList
[MARKET-192] - Allow environment be used by KettleVFS
[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.

Conflicts:
	ui/src/org/pentaho/di/ui/repository/repositoryexplorer/controllers/BrowseController.java
[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 #761 from mtseu/backlog-186-52

[BACKLOG-186] - Need to provide user with a decent message when the repo...
[BACKLOG-179] Exporting/Importing Jobs breaks Transformation specification when using "Specify by reference"
[BACKLOG-179] Fixing/Updating unit tests
[BACKLOG-179] Errors executing JobEntryTrans/JobEntryJob after export/import
Merge pull request #766 from mdamour1976/5.2

[BACKLOG-179] Errors executing JobEntryTrans/JobEntryJob after export/import
[BACKLOG-684] - Updated documentation header from 5.1 to 5.2
Merge pull request #770 from brendan-lynch/5.2

[BACKLOG-684] - Updated documentation header from 5.1 to 5.2
[PDI-12927] - Filter Rows performance issue
[BACKLOG-684] - Information Maps for Release. Changed Get Started with DI   >  Getting Started with DI and Try Instant Template-Based Analysis    >    Getting Started with Instaview