Possible to pass the header to request function.
Add `Photo()` and `PhotoWithSlide()` GH-1
Describe about `Photo()` and `PhotoWithSlide()` close GH-1
Add `Scrub()` that used seek of video
Client has determine use device when make connection
To derive endpoint
Add `NewClientHasDevice()` that allow to specify the device
Test first writing !!
Setting for TravisCI
Add dependencies library .
Add TravisCI Badge
Change Scrub() position type float32 to 64
Add `Photo()` tests in the context of local and remote file.
Add `PhotoWithSlide()` test
Test for Coveralls (Goveralls)
Add Coveralls Badge

[skip ci]
Corresponds to request multiple tests
Change fail test method Error() to Fatal()
Add `GetPlayBackInfo()` test
 Add `Play()` and `PlayAt()` test