Log Message:
Update to 1.4.5

Upstream changes:
2016-05-14  Tony Plate <tplate@acm.org>
	* Version 1.4-4
	* add imports to NAMESPACE file
2016-04-16  Tony Plate <tplate@acm.org>
        * Version 1.4-3
        * add ... args to asub() and adrop() generics

2013-08-18  Tony Plate <tplate@acm.org>
        * Version 1.4-1
        * add use.dnns= arg to abind() to propagate names on dimnames (i.e., \ 
names(dimnames(x)))
	* add ability for hier.names= arg to abind() to take values 'before' and \ 
'after' (TRUE and FALSE still work with unchanged meaning)