BISERVER-8913 - Mail Server Setup - Save button needs confirmation popup.

Modified Mail Server Setup behaviour.
BISERVER-10209 - import-export.sh Provides No Feedback when export path does not exist

Parameter path is processing correctly now.
Unit test added.
ivy dependency added(jersey-multipart)
BISERVER-10507 - Wording of sender email in Email Settings is poorly worded

Changed for en locale, removed from other locales(default english text will be shown).
Merge pull request #1229 from aliakseihaidukou/BISERVER-8913

BISERVER-8913 - Mail Server Setup - Save button needs confirmation popup...
Merge pull request #1256 from aliakseihaidukou/BISERVER-10507

BISERVER-10507 - Wording of sender email in Email Settings is poorly wor...
Merge pull request #1223 from aliakseihaidukou/BISERVER-10209

BISERVER-10209 - import-export.sh Provides No Feedback when export path ...