More helper functions, general refactoring.
Output structure is all the same, all existing attributes
maintained. Some new ones are added:
* p-personal now rendered via getPortlet; has extra attribs
according to all others rendered with it
* footer rendered with slight variant of getFooter out of
BaseTemplate; has extra language attribs according to that
Change-Id: I462d1222b0166956d3dce17fbceccf386e179e8d
instead of just spitting it out directly
Also rename all of said functions accordingly, add documentation,
and start trying to make an actually cross-compatible version of
getPortlet() for BaseTemplate...
Output should be structurally the same. All existing attributes for
output elements are maintained; some may have new attribs added due
to more consistent render method (getPortlet). (Essentially, if one
item had it, now they all have it.)
New attribs include:
* id
* lang
* dir
* aria-labelledby
Change-Id: I0a7ca1b95c2ad03273ed9c713be0da694c94a176
Also delete unused images, since even if something is
somewhere using them anyway (looked, couldn't find
anything), it wouldn't be able to find them in the new
image location regardless.
Wiki.png, magnify, and link are all part of core and have
been for some time.
Change-Id: Id7a02155a5f1b207908c9c0c8f7519b6d3f9a886
