Fix building $(srcdir)/static

Dependencies

• [2] 4PSZFZ7Y src/root/Makefile: fixup extraction of the fontawesome and bootstrap archives
• [*] FV2M6MOT hydra: use autoconf/-make
• [*] OEPUOUNB Using twitter bootstrap for more consistent looks for Hydra
• [*] ZCO73ATU Add fontawesome as required by newer bootstrap

Change contents

• edit in src/root/Makefile.am at line 25
  [5.124]

  [2.30]
  + rm -rf $(srcdir)/static/bootstrap
• edit in src/root/Makefile.am at line 29
  [6.136]

  [2.104]
  + rm -rf $(srcdir)/static/fontawesome