Update docs for 0.5 (Travis build 275)

Matching commit 7c349dbb6b8d76db39383b226d3ebdf59b8ab37d:
Add checks for memory allocation failures

Signed-off-by: Mahavir Jain <mahavir@espressif.com>
diff --git a/0.5/library_sizes.txt b/0.5/library_sizes.txt
index 3c27b43..0b72605 100644
--- a/0.5/library_sizes.txt
+++ b/0.5/library_sizes.txt
@@ -43,5 +43,5 @@
 3077	0	0	3659	6736	1a50	lib/libtinycbor.a(cborpretty.o)
 203	0	0	571	774	306	lib/libtinycbor.a(cborparser_dup_string.o)
 379	0	0	754	1133	46d	lib/libtinycbor.a(cborpretty_stdio.o)
-3876	0	0	4543	8419	20e3	lib/libtinycbor.a(cbortojson.o)
+3928	0	0	4547	8475	211b	lib/libtinycbor.a(cbortojson.o)
 2624	0	0	3568	6192	1830	lib/libtinycbor.a(cborvalidation.o)
diff --git a/library_sizes/master/macx-clang b/library_sizes/master/macx-clang
index 2fe1811..c27a160 100644
--- a/library_sizes/master/macx-clang
+++ b/library_sizes/master/macx-clang
@@ -6,5 +6,5 @@
 3077	0	0	3659	6736	1a50	lib/libtinycbor.a(cborpretty.o)
 203	0	0	571	774	306	lib/libtinycbor.a(cborparser_dup_string.o)
 379	0	0	754	1133	46d	lib/libtinycbor.a(cborpretty_stdio.o)
-3876	0	0	4543	8419	20e3	lib/libtinycbor.a(cbortojson.o)
+3928	0	0	4547	8475	211b	lib/libtinycbor.a(cbortojson.o)
 2624	0	0	3568	6192	1830	lib/libtinycbor.a(cborvalidation.o)