README: note about `npge -g` before `npge Pangenome`
print_config(): do not print ';'
util_lua: bind function rresolve_home_dir()
move implementation of read_config() to Lua
read_config() treats all new global Lua vars as global options

npge.conf:
    XXX = yyy

 is now equivalent to
    set('XXX', yyy)
npge -g generates new (simple) condif format
read_config(): new var is option only if meta has such key
Meta: group options by section
Meta: add methods .sections() and .opts_of_section()
algo_lua: bind section-related methods of Meta
opts_lib: assign section to every option
AllOptions: group options by section
mark local function gopts_of_section() static
AllOptions: print "other" if section is empty
print_config(): group options by section
move heade.html to doc

--HG--
rename : header.html => doc/header.html
move Doxyfile.in to doc

--HG--
rename : Doxyfile.in => doc/Doxyfile.in
remove not used option MAX_EVALUE
AddGenes: import tRNA, rRNA, misc_RNA as well as CDS
GetData: "--type=genes" -> "--type=features"