TMDM-7434: impl DTO and add corresponding junits

TMDM-7434 use gwt RegExp

TMDM-7434: add autoRefresh status configs to PortalProperties and add relevant junit

TMDM-7434: init impl for config stored into/retrieved from db ( init cases: no config data in db, has data in db)

Conflicts:
	org.talend.mdm.webapp.welcomeportal/src/main/java/org/talend/mdm/webapp/welcomeportal/server/actions/WelcomePortalAction.java

TMDM-7434: send allCharts to ActionPanel and clean ups

TMDM-7434 init fully working version(basic config update, swithc column, turn charts on/off)

Code needs refactoring and clean-ups

TMDM-7434: potential bug fixes, refactoring & code clean-ups, i18n message for saving/retrieving actions

Conflicts:
	org.talend.mdm.webapp.welcomeportal/src/main/java/org/talend/mdm/webapp/welcomeportal/client/i18n/WelcomePortalMessages.java
	org.talend.mdm.webapp.welcomeportal/src/main/resources/org/talend/mdm/webapp/welcomeportal/client/i18n/WelcomePortalMessages.properties
	org.talend.mdm.webapp.welcomeportal/src/main/resources/org/talend/mdm/webapp/welcomeportal/client/i18n/WelcomePortalMessages_fr.properties
	org.talend.mdm.webapp.welcomeportal/src/main/resources/org/talend/mdm/webapp/welcomeportal/client/i18n/WelcomePortalMessages_ru.properties

TMDM-7434: refactoring for naming convention and init working base for new update for storing portlet settings(TOP N, Timeframe)

TMDM-7434: update ConfigModel for being stored in db and add related junit

TMDM-7434: init impl for storing/retriving chart setting from db and code refactoring/cleanups

bugs(-not incremental update autoOnOffs and chart settings) need to be fixed

TMDM-7434: resolve bugs caused by no-incremental update for autoRefresh/chartSettings(new config setting should be added iso overwrite the old one)

(autoRefresh config to be checked/tested for retrieving process for potential bug)

TMDM-7434: resolve PortalConfig retrieval timer(as workaround) related bug, code refactoring, and better tooltip for autoRefresh icon

TMDM-7434: final clean-ups