UI update and remote button modes

• Updates the User interface with an "experimental" checkbox to hide modes that are less intuitive to use
• Implements a listener for media button messages from the phone. This mode is helpful for displaying activity labels that the user should perform during activity recognition training

Streamlined Calibration and Mode Exclusiveness

• Updated calibration procedure for Watch Only to single-step calibration. Instructions are in the wiki.
• Made Watch Only and other Phone modes exclusive. Now, Watch Only is only available if no phone is connected. This avoids udp blocking by the host phone.

Phone Pocket handling

• Added new Phone Pocket Mode associated with our newest workshop paper

first basic release

• Basic functions for WatchOnly as well as +PhoneUpperArm modes are well tested and established.
• Audio streaming ins available.
• Other experimental modes are still hidden.

first preliminary release

This version features:

• initial 2-gesture calibration
• sensor recording and sensor stream
• mic stream

Known issues:
IPs and PORTS are hard coded and startup performance needs improvement. Also, this release requires the Samsung Galaxy 5 HR sensor and will fail to start if it is not present.