<add> PNG Snippet VIs from Code Complete Tool

<doc> http://sourceforge.net/projects/lv-cct-tool/
<priv> Commit: 9d97aea5cbd2fc456c5914801e927df6a901d523
<rev> Rename PNG Snippet VIs

<priv>
CCT_Snippet.vi --> PSCreateSnippet.vi
PNG/ --> PSSupport/
Get PNG Chunks.vi --> PSCalculatePngChecksum.vi
PNG Checksum.vi --> PSCreatePngChunk.vi
PNG Chunk.vi --> PSCreatePngTextChunk.vi
PNG tEXt Chunk.vi --> PSGetPngChunks.vi
<rev> Update VI icons

<priv> Light front panel and block diagram tidying
<rev> Tidy block diagrams for size and wire bends
<add> Introducing VISnipDiagram.sh -- a command line tool that creates a VI snippet of a VI's block diagram

<rev> Place PngSnippet VIs into VVPngSnippet library
<rev> Refactor PSCreateSnippet to embed VI into PNG without using CCT components
<add> Forgot this one :-S
<rev> Update readme with VISnipDiagram information