Release 0.5.0

Release changes:

• #9 Remove dependency on AMD/require.js [jcbrand]
• #22 Fixed compare operator in strophe.muc [sonata82]
• #23 Add Italian translations [ctrlaltca]
• #24 Add Spanish translations [macagua]
• #25 Using span with css instead of img [matheus-morfi]
• #26 Only the first minute digit shown in chatbox. [jcbrand]
• #28 Add Brazilian Portuguese translations [matheus-morfi]
• Use Bower to manage 3rd party dependencies. [jcbrand]