Issue history download

- issue history download is now possible
- will be added as an extra node
- added checkbox on dialog
Merge remote-tracking branch 'upstream/dev' into dev
Fix for "Output spec-array length invalid: 1 <> 2"
Merge branch 'dev' into itc_common
share nodedialog

added shared nodedialog which will be used in ITS nodes; new package
its.common
position of nodedialog changed

yay i commited in main project package!
Introduced multithreading
Added progress indicator; refactoring
Cleanup, `RsClient` is no longer connected with `UriBuilder`

Removed connection `JiraOnlineAdapterRsClient` with
`JiraOnlineAdapterUriBuilder`
JUnit cleanup
Added an option to set thread count
Merge remote-tracking branch 'origin/dev' into itc_common
Refactored common its dialog

Adapting bugzilla plugin to use common dialog
Changed the limit filter to optional

Organize imports
Corrected integration test
Merge branch 'itc_common' into bugzilla_online_plugin_feature

Conflicts:
	ic-depress-base/src/org/impressivecode/depress/its/ITSCommonDialog.java
	ic-depress-its-bugzilla/src/org/impressivecode/depress/its/bugzilla/BugzillaOnlineAdapterNodeDialog.java
Added backwards compatibility from Bugzilla 3.4 version
NullPointerException while check priority repaired
New filters added
couple comments to prevent misunderstanding