server-side json parser does not handle whitespace properly

Consider the following JSON for file system discovery:

{
"vfs.fs.type.discovery":[

{ "

{#FSNAME}":"\/", "{#FSTYPE}":"rootfs" },
{ "{#FSNAME}

":"\/sys", "

{#FSTYPE}":"sysfs" },
{ "{#FSNAME}":"\/proc", "{#FSTYPE}

":"proc" },
{ "

{#FSNAME}":"\/dev", "{#FSTYPE}":"devtmpfs" },
{ "{#FSNAME}

":"\/dev\/pts", "

{#FSTYPE}":"devpts" },
{ "{#FSNAME}":"\/", "{#FSTYPE}

":"ext3" },
{ "

{#FSNAME}":"\/lib\/init\/rw", "{#FSTYPE}":"tmpfs" },
{ "{#FSNAME}

":"\/dev\/shm", "

{#FSTYPE}":"tmpfs" },
{ "{#FSNAME}":"\/home", "{#FSTYPE}

":"ext3" },
{ "

{#FSNAME}":"\/tmp", "{#FSTYPE}":"ext3" },
{ "{#FSNAME}

":"\/usr", "

{#FSTYPE}":"ext3" },
{ "{#FSNAME}":"\/var", "{#FSTYPE}

":"ext3" },
{ "

{#FSNAME}

":"\/sys\/fs\/fuse\/connections", "

{#FSTYPE}

":"fusectl" }

]
}

Our JSON parser requires that there is no whitespace around the colon. If there is whitespace, server says "Wrong data in JSON.", which is not a very helpful error message.

We should improve our JSON parser so that we are more helpful to users wishing to implement their own discoveries in 2.0.