fix small glitch at the api call

.rspec_status

 example_id                    | status  | run_time        |
 ----------------------------- | ------- | --------------- |
-./spec/zoholib_spec.rb[1:1]   | passed  | 0.00046 seconds |
-./spec/zoholib_spec.rb[1:2]   | passed  | 0.0004 seconds  |
-./spec/zoholib_spec.rb[1:3:1] | passed  | 0.00028 seconds |
-./spec/zoholib_spec.rb[1:3:2] | passed  | 0.00007 seconds |
+./spec/zoholib_spec.rb[1:1]   | passed  | 0.00168 seconds |
+./spec/zoholib_spec.rb[1:2]   | passed  | 0.04786 seconds |
+./spec/zoholib_spec.rb[1:3:1] | passed  | 0.00112 seconds |
+./spec/zoholib_spec.rb[1:3:2] | passed  | 0.0001 seconds  |
 ./spec/zoholib_spec.rb[1:3:3] | pending | 0.00001 seconds |
-./spec/zoholib_spec.rb[1:3:4] | pending | 0.00001 seconds |
-./spec/zoholib_spec.rb[1:3:5] | pending | 0 seconds       |
+./spec/zoholib_spec.rb[1:3:4] | pending | 0 seconds       |
+./spec/zoholib_spec.rb[1:3:5] | pending | 0.00001 seconds |
 ./spec/zoholib_spec.rb[1:3:6] | pending | 0 seconds       |
 ./spec/zoholib_spec.rb[1:3:7] | pending | 0 seconds       |
-./spec/zoholib_spec.rb[1:4:1] | passed  | 0.0002 seconds  |
-./spec/zoholib_spec.rb[1:4:2] | failed  | 59.35 seconds   |
+./spec/zoholib_spec.rb[1:4:1] | passed  | 0.00023 seconds |
+./spec/zoholib_spec.rb[1:4:2] | failed  | 0.82752 seconds |

lib/masmovil-smsclient/client.rb

@@ -27,7 +27,7 @@ module Wedoops
                 }
                 begin
                    # pp @client
-                    response = @client.call(:sendSMS) do
+                    response = @client.call(:send_sms) do
                         message(message)
                     end
                 rescue Exception => e