Merge a16fde8070 into 564facf33e

```
src/libfastcommon.a(hash.o): relocation R_X86_64_32 against `.data' can not be used when making a shared object; recompile with -fPIC
```

env: Ubuntu 14.04, gcc 4.8

INSTALL

@@ -21,5 +21,5 @@ Debian, Ubuntu etc.:
 # the command lines as:
 
    git clone https://github.com/happyfish100/libfastcommon.git
-   cd libfastcommon; git checkout V1.0.86
+   cd libfastcommon; git checkout V1.0.87
    ./make.sh clean && ./make.sh && sudo ./make.sh install

src/Makefile.in

@@ -68,7 +68,7 @@ libfastcommon.a: $(FAST_STATIC_OBJS)
 .c:
 	$(COMPILE) -o $@ $<  $(FAST_STATIC_OBJS) $(LIB_PATH) $(INC_PATH)
 .c.o:
-	$(COMPILE) -c -o $@ $<  $(INC_PATH)
+	$(COMPILE) -c -fPIC -o $@ $<  $(INC_PATH)
 .c.lo:
 	$(COMPILE) -c -fPIC -o $@ $<  $(INC_PATH)
 install:

src/shared_func.c

@@ -3283,6 +3283,7 @@ static int format_bytes_string(const int64_t input_bytes,
         }
         p = buff + fc_itoa(n, buff);
     }
+
     return p - buff;
 }