DummyPlugin: add directory
pyTuttle: SWIG, change autodoc level
tuttleHost: fix param setValue for multidim parameters

* now you could: setValue([redValue, greenValue, blueValue]) on an RGBA param (set alpha to 1.0)
* now you could: setValue([redValue, greenValue, blueValue, alphaValue]) on an RGBA param
* Warning: change parameter order for get/setValueAtIndex, get/setValueAtTimeAndIndex
* fix setValueAtIndex
* add pyTests for param get/set values

Issue #152
tuttleHost: bug fix on AnimatedParam, pointer copy

AnimatedParam maintains a pointer to an Interpolator,
but doesn't implement the copy constructor. The default
implementation will copy all member variables and
will duplicate the pointer itself. So 2 AnimatedParam will
point to the same ValueInterpolator...
Replace the pointer with a scoped_ptr to limit pointer
management troubles.
tuttleHost: parameters, modify multi-dim param python binding and implicit conversion

* add implicit conversion from int to double
setValue(1) and setValue(1.0) works fine on double parameters.

* python binding: multidim now works only with list
setValue(r, g, b, a) has been removed in python because it creates ambiguities.
setValue([r, g, b, a]) works fine as before.

* the alpha value is no more optional for RGBA params
setValue(r, g, b) on RGBA parameters has been removed because it creates ambiguities.
Now you need to specify the alpha channel value.

* add pyTests on parameters manipulation

Fix #152
Merge branch 'develop' of github.com:tuttleofx/TuttleOFX into develop
ffmpeg: add error messages and minor changes in pts
fix dummy reader with single sequence or file browsing
fix #159
clean output color usage
Merge branch 'develop' of github.com:tuttleofx/TuttleOFX into develop
color transfert: clean return pixel type
fix #160
adding auto mode for writers
fix #161
ColorTransfer: clean code
fix 143
scons: fix SConscript load order

new load order:
* libraries
* plugins
* applications
* tests
* doc
tuttleHost: set default timeDomain in outArgs of GetTimeDomainAction
tuttleHost: minor
TimeShiftPlugin: fix time propagation
pyTests: add dependencies system
Merge branch 'dev_graphManipulation' into develop
update sconsProject: fix gcc flags