v2.0.50

• Better floating point numbers comparison in jbn_compare_nodes() (jbl.h)
• Fixed error in jbn_copy_path() if some source property doesn't exist (jbl.h)
• Added jbn_length() (jbl.h)
• Added lwre.h to set of public headers
• Added node_out for every jbn_add_item_X() (jbl.h)
• Fixed compilation error on clang-10
• Fixed ejdb2_jni to be java-8 compatible
• Fixed ejdb2_jni to be headless JDK compatible