Project: help  9e1f105bcf48f6518a3804ab14db6f5e8a3eaca4

minor changes for functions IM*

ful_func.xhp
	paragraphs with service information is replaced to comments;
	the last mention of a complex number in the variable
	func_define_complex is replaced  to a number, as there can
	be any a number, not just a complex number;
	added the paragraph about result;
func_imcos.xhp and func_imcosh.xhp
	deleted attribute locale="false" in paragraphs with examples,
	as they need to be translatable;
in all func_im* files
	the part of the variable with description took away;
	chenged the part with "a+bi" by request Olivier;
	added the link to the result;
	added tag <br /> in paragraphs with examples, as examples
	need to be separated from his descriptions.

Change-Id: I571415de35440ee9227d6e8bc270ed5c69c9e237
Reviewed-on: https://gerrit.libreoffice.org/19599Reviewed-by: Olivier Hallot <olivier.hallot@edx.srv.br>
Tested-by: Olivier Hallot <olivier.hallot@edx.srv.br>