amcculloch initial svg work
add parser for svg definitions
add svg writer
actually write out svg in svgwriter
rename dependsOnAttribute to dependsOn
add svg parsing max length

svg max size test
fail if expected exceptions are not thrown during test cases
Merge branch 'ryanhall-svg-update' of git.soma.salesforce.com:ryan-hall/aura into bob/master-pending/pr131-svg-def

@P4CL:9483364@
Merging origin/bob/master-pending/pr131-svg-def into master