Study and preliminary tests  on correlated fits

plots modification in juobs_obs

added Mb physical in const

Class Corr extended with extra arguments \theta1 and \theta2 inherited  from CHeader. Required for 3-pt analysis with momentum injection

# Conflicts:
#	src/juobs.jl
#	src/juobs_linalg.jl

mergin javier into alessandro

error finding non-defined id

dec_const uses time reflected correlators

broadcasting dictionaries is not allowed

update in getall_eigvals and uwerr(ydata) removed in juobs_tools.jl/fit_routine in order to choose a different wpm windows. Otherwise it does not work

dec_const uses time reflected correlators

automatic truncation t0 + unfinished runs