First stable release : v1.0.0

Major changes in documentation.
Added solver_type as an attribute to IltData which specified the type of solver used : user-defined, default-dense,default-sparse or alt_g
Minor changes in logging statements in alt_g solving flow.
In iltload, changed the order of keyword arguments to data,t,f,data_path
Fixed bug which doesn't reinitialize dim_ndim, even if reinitialize is set to True.
force_sparse and sparse_threshold can now be provided through parameters keyword

Development