Improved Web module to simplify adding of different data sources for contacts (#4).
Removed unused dependencies.
Updated physical structure of modules.
Improved Maven configuration.
Added type of email.
Improved synchronization of name, phone and email.
If property of contact is not defined, then null value will be returned.
Created repository, which provides access to contacts.
Minor improvements of code.
Improved naming: replaced 'Contact' by 'Employee' for DS.
Added comments.
Changed type of phone number (from work to mobile).
Fixed version code.
Network type is checked before starting download of contacts or photos (#16).
Updated styles for UI.
Improved logging.
Improved styles for UI (issue with Android 2.2.x).
Defined TargetApi for Email.Address (required by Lint).
Replaced Email.ADDRESS by Email.DATA for backward compatibility.
Extracted method, that composes data about organization.