Check if LUSOL workspace has been allocated before

[pelesh]

Some bandaid solutions for LUSOL:

• On repeated analysis, check if LUSOL workspace has been allocated before. If so, nuke it and allocate the new one. This is a brute-force solution to prevent memory leaks and should be refined.
• Created allocateSolverData and freeSolverData private methods.
• Use memory manager to initialize array.
• Changed logger alias to out.