XWIKI-10921: Empty breadcrumb is shown when exporting in HTML the home page with Flamingo.

(cherry picked from commit 2b8b22aa9d62a2bb86f9e0d48444b51b5e100396)
XWIKI-10915: Use a monospace font when displaying textarea content in wiki mode.

(cherry picked from commit 68c9b7044ccdb8387cf5768b0857ac49eac489f9)
XWIKI-10905: The "Search" field is not well displayed on ie8.

(cherry picked from commit 329f8c647432d596e892275e6eb8f10105c7e97a)
XWIKI-10775: LESS compiler fails to compute Flamingo's CSS if a document called Main.flamingo exists.

(cherry picked from commit 388655ce28b581dfe34010d67c967e04d5145266)