updated audioStim object - has properties and its own driver
updated ImageStim - has properties map
 refactoring on branch
refactor on branch
new method for pausing experiment
new methof for audio recording
refactor on branch
new method
new method
 adding new public matlab method to use with tools
new audio method
new method
new method
new method
refactor on branch
refactor on branch
accounting for sessionId
adding sessionId to path
adding sessionId to path
new example with sync