5.4-7.2MB of images causes OutOfMemoryError

for #52 Tested with 4 x images at 1.8MB

03-08 20:55:22.790: I/dalvikvm-heap(10255): Grow heap (frag case) to 44.019MB for 9478792-byte allocation
03-08 20:55:22.840: D/dalvikvm(10255): GC_FOR_ALLOC freed 9256K, 38% free 35677K/56740K, paused 48ms, total 48ms
03-08 20:55:22.860: D/dalvikvm(10255): GC_CONCURRENT freed 1K, 36% free 36833K/56740K, paused 5ms+4ms, total 23ms
03-08 20:55:22.880: I/Replicator(10255): Waiting for replicator to finish
03-08 20:55:22.930: D/dalvikvm(10255): GC_FOR_ALLOC freed 18515K, 61% free 22413K/56740K, paused 15ms, total 16ms
03-08 20:55:22.960: D/dalvikvm(10255): GC_CONCURRENT freed <1K, 52% free 27384K/56740K, paused 2ms+7ms, total 26ms
03-08 20:55:23.050: D/dalvikvm(10255): GC_FOR_ALLOC freed 4738K, 52% free 27257K/56740K, paused 16ms, total 17ms
03-08 20:55:23.120: D/dalvikvm(10255): GC_FOR_ALLOC freed 4608K, 49% free 29157K/56740K, paused 16ms, total 17ms
03-08 20:55:23.200: D/dalvikvm(10255): GC_CONCURRENT freed 3584K, 43% free 32755K/56740K, paused 3ms+3ms, total 21ms
03-08 20:55:23.200: D/dalvikvm(10255): WAIT_FOR_CONCURRENT_GC blocked 10ms
03-08 20:55:23.280: I/TDDatabase(10255): com.couchbase.touchdb.replicator.TDPusher$2@41255d88: Sending 2 revisions
03-08 20:55:23.280: V/TDDatabase(10255): com.couchbase.touchdb.replicator.TDPusher$2@41255d88: Sending [{doc1 #2-abd59e35-5a0d-4063-9287-c0d646eda60a}, {doc2 #1-56e6ae77-1110-4cec-a156-5347e037016b}]
03-08 20:55:23.300: D/dalvikvm(10255): GC_CONCURRENT freed 4741K, 37% free 36206K/56740K, paused 3ms+4ms, total 21ms
03-08 20:55:23.300: D/dalvikvm(10255): WAIT_FOR_CONCURRENT_GC blocked 12ms
03-08 20:55:23.630: D/dalvikvm(10255): GC_FOR_ALLOC freed 223K, 23% free 43942K/56740K, paused 16ms, total 17ms
03-08 20:55:23.700: D/dalvikvm(10255): GC_FOR_ALLOC freed <1K, 20% free 45477K/56740K, paused 16ms, total 16ms
03-08 20:55:23.700: I/dalvikvm-heap(10255): Forcing collection of SoftReferences for 9479102-byte allocation
03-08 20:55:23.720: D/dalvikvm(10255): GC_BEFORE_OOM freed 785K, 22% free 44691K/56740K, paused 23ms, total 23ms
03-08 20:55:23.720: E/dalvikvm-heap(10255): Out of memory on a 9479102-byte allocation.
03-08 20:55:23.720: I/dalvikvm(10255): "RemoteRequest-http://----:---@testcouch.iriscouch.com:80/touchdb-test/_bulk_docs" prio=5 tid=14 RUNNABLE
03-08 20:55:23.720: I/dalvikvm(10255):   | group="main" sCount=0 dsCount=0 obj=0x4129b588 self=0x68c90c28
03-08 20:55:23.720: I/dalvikvm(10255):   | sysTid=10279 nice=0 sched=0/0 cgrp=apps handle=1755869792
03-08 20:55:23.720: I/dalvikvm(10255):   | state=R schedstat=( 418373000 10460000 129 ) utm=41 stm=0 core=3
03-08 20:55:23.720: I/dalvikvm(10255):   at org.codehaus.jackson.util.ByteArrayBuilder.toByteArray(ByteArrayBuilder.java:~154)
03-08 20:55:23.720: I/dalvikvm(10255):   at org.codehaus.jackson.map.ObjectMapper.writeValueAsBytes(ObjectMapper.java:2106)
03-08 20:55:23.720: I/dalvikvm(10255):   at com.couchbase.touchdb.support.TDRemoteRequest.run(TDRemoteRequest.java:121)
03-08 20:55:23.720: I/dalvikvm(10255):   at java.lang.Thread.run(Thread.java:856)
03-08 20:55:23.720: W/dalvikvm(10255): threadid=14: thread exiting with uncaught exception (group=0x40b01930)
03-08 20:55:23.730: E/AndroidRuntime(10255): FATAL EXCEPTION: RemoteRequest-http://semisecureadmin:none@cesine.iriscouch.com:80/touchdb-test/_bulk_docs
03-08 20:55:23.730: E/AndroidRuntime(10255): java.lang.OutOfMemoryError
03-08 20:55:23.730: E/AndroidRuntime(10255): 	at org.codehaus.jackson.util.ByteArrayBuilder.toByteArray(ByteArrayBuilder.java:154)
03-08 20:55:23.730: E/AndroidRuntime(10255): 	at org.codehaus.jackson.map.ObjectMapper.writeValueAsBytes(ObjectMapper.java:2106)
03-08 20:55:23.730: E/AndroidRuntime(10255): 	at com.couchbase.touchdb.support.TDRemoteRequest.run(TDRemoteRequest.java:121)
03-08 20:55:23.730: E/AndroidRuntime(10255): 	at java.lang.Thread.run(Thread.java:856)
03-08 20:55:23.880: I/Replicator(10255): Waiting for replicator to finish