v0.11 Release

This release brings following:

Feature:

• PR (@DennyLoko) #51 Request based on SRV record support (instead of Host URL)

Enhancement(s):

• #53 Added IsProxySet() method on resty.Client
• #56 Performance improvement, no more mutex and resty is truely parallel
• PR (@iRita) #60, #59 Using http.Client.SetTimeout for go1.3 and above
• #58 Added nil check for RawResponse, so RetryConditionFunc implementation at ease

Bug:

• #57 OnBeforeRequest does not change Request.RawRequest attributes

Breaking Change:

• #56 Individual Request level proxy support have been removed from resty