Refactoring shred mgmt and addressing some issues around shred removal when adding shreds across multiple code editors

Fixing up remove all shreds now that we're getting and storing the right shred ids from libchuck

Hooking up remove shred button on code components and fixing some logic

fix for add shred id return

Removed white spaces from param names since they seem to not be allowed by the host and can cause plugins to crash during state saving/restoring

Removing some old code from PluginProcessor

Fixing XML serialization issue when deleting plugin or saving with a paramter that had not been renamed

Minor param map UI tweaks

Tab names now update when loading or saving a chuck file

Setting plugin to want keyboard focus

WIP setting default fileName to Untitled, and setting tab label to fileName when new tab is added

Removing space in ChuckRacks binary for now due to makefile constraints with OSX packager

Updating examples to adhere to latest API

makefile tweaks

Changing min OSX version to 10.9