0.3.0

CHANGES:

• Improve the entry point documentation (@yomimono, #28)
• Fix deprecated Obj function (@OlivierNicole, #29)
• Use json-data-encoding instead of ocplib-json-typed (@samoht, #34)
• Improve the documentation (@edwintorok, #32)
• Add hardware perf measures (@OlivierNicole, #30)