Fix for user-defined <localleader> for command mappings.
<localleader>-mapped commands are not dynamic, i.e. existing mappings
are not changed if <localleader> is updated after mappings have occurred.
To fix this, loading of .vimoutlinerrc must take place before the key
mappings.
1. Moved loading of .vimoutlinerrc to before key mappings.
2. Cleaned up comments a bit.
3. Removed the <localleader>,, command that forces reloading of settings.
	(this command points to non-existent configuration files anyway)
doc/votl_readme.txt is just a copy of old votl.txt, remove it.

Fixes #53
Small corrections and updates
Updated TODO.otl
Add VimOutliner icons to the repository.
Modified to install.sh to:
1. Turn off backup functionality. (filename_time_date.old files)
2. Remove old backup clutter. (filename_time_date.old files)
3. Remove old vo_base.vim files from syntax, ftdetect and ftplugin
Removed unnecessary reserved mappings.
Complete rewrite of plugin.
Only base processing functions in place at this time.
Allows for multiple equations and multiple variables per heading.
Support for integer, floating-point and scientific notation.
Complete rewrite of the outline math plugin.
Exampls in votl_math.otl