- Correction of a bug in the Jacobian Matrix computation for a non block-decomposed model using bytecode

and corrects the computation of the number of column in the jacobian matrices in a block decomposed model without bytecode
- Identical corrections for models using bytecode without block decomposition

Add the missing dr_block m-file

+ minor corrections in steady_.m

Fixed bug in kalman_steady_state.cc related to long integer and (mkl) lapack calls. Changed building system by adding -fdefault-integer-8 flag to gfortran when slicot is compiled on a 64-bits platform.

Arbirtrary expressions after the "values" keywords must now be enclosed
within parentheses; consider the following example:
<code>
periods 1:2;
values -1 -2;
</code>

In the previous syntax, this was interpreted by the preprocessor as a shock of
value -1-2 = -3 for periods 1 and 2, which is clearly not the intent of the
user; with the new syntax, this will be rejected (too many values compared to
the number of ranges).

Also note that now commas are no longer required between arbitrary expressions,
since the parentheses are sufficient for separating them.

The mex works with octave but not with matlab (lapack issue again ;-).

Moved test files for kronecker product mex files from ./mex/sources/kronecker/tests to ./tests/kronecker.

Efficiency improvements in first order stochastic simulations (Simulate data in deviation to the steady state and then,
after the loop, add the steady state using bsxfun routine, which is parallelized in recent version of matlab). Removed
use of M_.maximum_lag.

Preprocessor: max lead/lags in the model are no longer affected by lead/lags on parameters (closes #153)

Added the Slicot library (distributed under the GNU General Public Licence at  www.slicot.org). This library provides routines
for the design and analysis of control systems. Adapted the building system to handle fortran 77 source files.

Changed set_dynare_threads.m. The number of threads in parallelized mex files to be used if dynare is built with the openmp flag
(--with-openmp) is not passed by an environment variable anymore. The function set_dynare_threads changes the default value of the
number of threads (default is 1) in the options_.threads structure. Changed calls to sparse_hessian_times_B_kronecker_C and
A_times_B_kronecker_C dlls accordingly.