BISERVER-3713 - Remove Chartbeans Dial Chart sample from CE

What was done:
1) removed sample and localization files
2) removed reffrences to the sample from SolutionRepositoryService.xml and
exportManifest.xml
BISERVER-7665 - Code duplication: mantle_confirmBackgroundExecutionDialog (jsni) defined twice

What was done:
1) Removed dupllicated methods runInBackground and confirmBackgroundExecutionDialog
2) Switched SolutionBrowserPanel to use dialog from ScheduleHelper
BISERVER-10290 - When pasting a file that is hidden, the "hidden" flag gets removed.

now with copying or moving a file it's properties(hidden and metadata) are copied too.
BISERVER-9572 - IE - New Data Source Wizard - Import File - cursor issue with the file name text box.

remove some css styles, they will harm changes in pentaho-xul-gwt module
fix for failing build. Changed package structure for StringUtils class
Merge pull request #1142 from pminutillo/localdev

Fix for build failures
Revert "fix for failing build. Changed package structure for StringUtils class"

This reverts commit b1a759bd4d213ad240eda5b98c36604dcc9295a6.
BISERVER-7873 - Potential bug: use of String#toUpperCase is unsafe

fix anf JUnit
Merge pull request #1150 from aliakseihaidukou/BISERVER-10290

BISERVER-10290 - When pasting a file that is hidden, the "hidden" flag g...
Merge pull request #1147 from kolinus/BISERVER-7665

BISERVER-7665 - Code duplication: mantle_confirmBackgroundExecutionDialog (jsni) defined twice
Merge pull request #1146 from kolinus/BISERVER-3713

BISERVER-3713 - Remove Chartbeans Dial Chart sample from CE
Merge pull request #1154 from apratkin/BISERVER-7873

BISERVER-7873 - Potential bug: use of String#toUpperCase is unsafe
Merge pull request #1155 from aliakseihaidukou/master

BISERVER-9572 - IE - New Data Source Wizard - Import File - cursor issue...