Vorinostat Recruiting Phase 1 Trials for Grade 3b Follicular Lymphoma / Grade 3a Follicular Lymphoma / Recurrent Diffuse Large B-Cell Lymphoma / Refractory Classical Hodgkin Lymphoma / Refractory Diffuse Large B Cell Lymphoma / Recurrent Classical Hodgkin Lymphoma / Refractory Follicular Lymphoma / Recurrent Grade 2 Follicular Lymphoma / Recurrent Grade 1 Follicular Lymphoma / Recurrent Follicular Lymphoma / Recurrent Mediastinal (Thymic) Large B-Cell Cell Lymphoma / Refractory Mediastinal (Thymic) Large B-Cell Cell Lymphoma Treatment