Fix conversion tests

13:26:56 [INFO]   6 failing
13:26:56 [INFO] 
13:26:56 [INFO]   1) Document
13:26:56 [INFO]        #convert
13:26:56 [INFO]          should convert a blob given an xpath:
13:26:56 [INFO] 
13:26:56 [INFO]       AssertionError: expected false to be true
13:26:56 [INFO]       + expected - actual
13:26:56 [INFO] 
13:26:56 [INFO]       -false
13:26:56 [INFO]       +true
13:26:56 [INFO]       
13:26:56 [INFO]       at repository.fetch.then.then.then.then (test/document.spec.js:350:57)
13:26:56 [INFO]       at <anonymous>
13:26:56 [INFO]       at process._tickCallback (internal/process/next_tick.js:188:7)
13:26:56 [INFO] 
13:26:56 [INFO]   2) Document
13:26:56 [INFO]        #convert
13:26:56 [INFO]          should convert the main blob
13:26:56 [INFO]            using a destination format:
13:26:56 [INFO] 
13:26:56 [INFO]       AssertionError: expected false to be true
13:26:56 [INFO]       + expected - actual
13:26:56 [INFO] 
13:26:56 [INFO]       -false
13:26:56 [INFO]       +true
13:26:56 [INFO]       
13:26:56 [INFO]       at repository.fetch.then.then.then.then (test/document.spec.js:316:59)
13:26:56 [INFO]       at <anonymous>
13:26:56 [INFO]       at process._tickCallback (internal/process/next_tick.js:188:7)
13:26:56 [INFO] 
13:26:56 [INFO]   3) Document
13:26:56 [INFO]        #convert
13:26:56 [INFO]          should convert the main blob
13:26:56 [INFO]            using a destination mime type:
13:26:56 [INFO] 
13:26:56 [INFO]       AssertionError: expected false to be true
13:26:56 [INFO]       + expected - actual
13:26:56 [INFO] 
13:26:56 [INFO]       -false
13:26:56 [INFO]       +true
13:26:56 [INFO]       
13:26:56 [INFO]       at repository.fetch.then.then.then.then (test/document.spec.js:327:59)
13:26:56 [INFO]       at <anonymous>
13:26:56 [INFO]       at process._tickCallback (internal/process/next_tick.js:188:7)
13:26:56 [INFO] 
13:26:56 [INFO]   4) Document
13:26:56 [INFO]        #scheduleConversion
13:26:56 [INFO]          should schedule a conversion of a blob given an xpath:
13:26:56 [INFO] 
13:26:56 [INFO]       AssertionError: expected false to be true
13:26:56 [INFO]       + expected - actual
13:26:56 [INFO] 
13:26:56 [INFO]       -false
13:26:56 [INFO]       +true
13:26:56 [INFO]       
13:26:56 [INFO]       at repository.fetch.then.then.then.then.then.then (test/document.spec.js:448:57)
13:26:56 [INFO]       at <anonymous>
13:26:56 [INFO]       at process._tickCallback (internal/process/next_tick.js:188:7)
13:26:56 [INFO] 
13:26:56 [INFO]   5) Document
13:26:56 [INFO]        #scheduleConversion
13:26:56 [INFO]          should schedule a conversion of the main blob
13:26:56 [INFO]            using a destination format:
13:26:56 [INFO] 
13:26:56 [INFO]       AssertionError: expected false to be true
13:26:56 [INFO]       + expected - actual
13:26:56 [INFO] 
13:26:56 [INFO]       -false
13:26:56 [INFO]       +true
13:26:56 [INFO]       
13:26:56 [INFO]       at repository.fetch.then.then.then.then.then.then (test/document.spec.js:390:59)
13:26:56 [INFO]       at <anonymous>
13:26:56 [INFO]       at process._tickCallback (internal/process/next_tick.js:188:7)
13:26:56 [INFO] 
13:26:56 [INFO]   6) Document
13:26:56 [INFO]        #scheduleConversion
13:26:56 [INFO]          should schedule a conversion of the main blob
13:26:56 [INFO]            using a destination mime type:
13:26:56 [INFO] 
13:26:56 [INFO]       AssertionError: expected false to be true
13:26:56 [INFO]       + expected - actual
13:26:56 [INFO] 
13:26:56 [INFO]       -false
13:26:56 [INFO]       +true
13:26:56 [INFO]       
13:26:56 [INFO]       at repository.fetch.then.then.then.then.then.then (test/document.spec.js:409:59)
13:26:56 [INFO]       at <anonymous>
13:26:56 [INFO]       at process._tickCallback (internal/process/next_tick.js:188:7)