Merge pull request #3 from esoubies/main

add all() in if condition over an array so that it is gpuArray compatible

Fix bug due to typo (thanks to Julien Brulé and Thibaut Paumard)

Merge pull request #2 from fabienmomey/main

Fix incompatble Matlab syntaxes for handling indices and inlined vectors calculations.

Tests with BLMVM option

Do not recompute projected gradient

Only save pg0 or g0 depending on whether BLMVM is emulated

Fix projecting new search direction

Fix comments and make implementations more alike

Do not use NaN's to avoid floating-point errors

Fix typo

Fix initialization of rho in LBFGS recursion

Fix when calling timer

Update doc.