Add support for checkout exception

[i053322]

What does this PR do?

The PR add new functionality for the checkout got API. new you can raise the relevant error and not GitAPIException. meaning that you can get the relevant error code and not only 500 and also move the parameters the relevant to the error.
Also there is no mapper for the git messages.

What issues does this PR fix or reference?

In checkout scenario in git you get the relevant error of conflict 409 and not 500. also you get the conflictPath of the error.

Previous Behavior

If there was an error you always get GitAPIException and not the relevant error.

New Behavior

Remove this section if not relevant
For each error in checkout API we will raise the relevant error with the relevant parameters for each error.

Tests written?

No for specific exception scenario.

Docs requirements?

Include the content for all the docs changes required.

1. API changes
2. User docs changes

Please review Che's Contributing Guide for best practices.

Change-Id: Ib41bc35dd6395656f9d7a9cccf0886e809e8dc5f
Signed-off-by: i053322 yossi.balan@sap.com

[i053322]

@vinokurig - added the PR from che 4.x

[vinokurig]

Please change imports of GitException in che-plugins and plugins 3.x

[i053322]

@vinokurig - what did you mean? I moved it and did refactor for all the classes .Do I need to do clone to another repository ?

[vinokurig]

You refactored GitException to org.eclipse.che.api.git.exception package, but in che-plugins and plugins projects GitException is imorted by org.eclipse.che.api.git.GitException. Please create pull requests there too

[i053322]

@vinokurig - I found this repository https://github.com/codenvy/che-plugins for che-plugins
what is the repository for plugins 3.x ?

[vinokurig]

sorry, plugins is a private repository

[vinokurig]

Ok for me

[i053322]

@vinokurig - I did it forche-plugins codenvy-legacy/che-plugins#631 is it ok ?

[vinokurig]

Looks like you opened a pull request for master but you should open it for 3.x

[i053322]

@vinokurig -I did it for 3.x

[i053322]

@vinokurig - this is the last commit in the branch
commit f1a29a06f5a924bdc2c0f436f9bdb60adbb9619e
Author: Igor Vinokur ivinokur@codenvy.com
Date: Fri May 27 13:06:43 2016 +0300

CHE-336: Refactoring of GitUrl class

[i053322]

@vinokurig
I checked the config of my branch
branch.checkout_error.remote=codenvy
branch.checkout_error.merge=refs/heads/3.x

[i053322]

@vinokurig Fixed codenvy-legacy/che-plugins#632

[vinokurig]

ok

[skabashnyuk]

ok @tareqhs it's up to you to merge this pr