chore(engine): Added load.php to load engine code without booting

This is useful during testing and installation
fix(css): removes padding and margin from elgg-menu-entity items
Merge pull request #7136 from PerJensen/1.x

fix(css): removes padding and margin from elgg-menu-entity items
fix(css): removes link color from "comments" header in river, default theme

Fixes #7137
Merge pull request #7139 from PerJensen/remove_link_color

fix(css): removes link color from "comments" header in river, default theme
feature(aalborg_theme): adds support for .elgg-button-special and button sizes

Fixes #2954
fix(css): strings together elgg-button and button sizes
Merge pull request #7142 from PerJensen/elgg_button_special

feature(aalborg_theme): adds support for .elgg-button-special and button...
Merge pull request #7119 from ewinslow/load-engine-without-booting

chore(engine): Added load.php to load engine code without booting
chore(views): refactor views service to store absolute paths

Refs #6844