+Fix service sync
+Desactivate buttons during Sync
Merge branch 'master' of https://github.com/thomasbrisoncapgemini/salesforce_android

Conflicts:
	src/com/capgemini/salesforceapp/model/AccountModel.java
	src/com/capgemini/salesforceapp/model/ContactModel.java
	src/com/capgemini/salesforceapp/model/Model.java
	src/com/capgemini/salesforceapp/model/VisitReportModel.java