Merge pull request #14 from dmb2168/chris_kira_semantic_analysis

Kira & Chris Stub Out new lrxlib.h
Merge pull request #15 from dmb2168/chris_kira_semantic_analysis

Chris kira semantic analysis
Merge pull request #16 from dmb2168/chris_kira_semantic_analysis

Chris kira semantic analysis
Merge pull request #17 from dmb2168/chris_kira_semantic_analysis

Minor Fixes to LrxLib and Check
added get_root func
Merge branch 'master' of github.com:dmb2168/PLT
pop_tree
some comparisons
Merge branch 'master' into chris_kira_semantic_analysis

Conflicts:
	lrxlib.h