added theory instantiating type class order for list prefixes

Main is implicitly imported via Sublist

added author

List is implicitly imported by Main

introduced "sub" as abbreviation for "emb (op =)"; Sublist_Order is now based on Sublist.sub; simplified and moved most lemmas on sub from Sublist_Order to Sublist; Sublist_Order merely contains ord and order instances for sub plus some lemmas on the strict part of the order

base Sublist_Order on Sublist (using a simplified form of embedding as sublist relation)

dropped ord and bot instance for list prefixes (use locale interpretation instead, which allows users to decide what order to use on lists)

more lemmas on suffixes and embedding

changed arguement order of suffixeq (to facilitate reading "suffixeq xs ys" as "xs is a (possibly empty) suffix of ys)

added embedding for lists (constant emb)

renamed (in Sublist): postfix ~> suffixeq, and dropped infix syntax >>=

renamed (in Sublist): prefix ~> prefixeq, strict_prefix ~> prefix

renamed theory List_Prefix into Sublist (since it is not only about prefixes)

compile

rearrange dependencies

renamed three BNF/(co)datatype-related commands

tuned boundary cases of command-line; adhoc removal of PDFs stemming from base sessions;

"isabelle logo" produces EPS and PDF format simultaneously; more robust invocation of epstopdf: avoid filter mode;

actually reset output when there is no valid command span here (especially relevant at very end of jEdit buffer, which lacks the terminating newline);

tuned proofs;

some parallel ML;

proper classpath on windows;

proper classpath for Java FX;

basic setup for HTML5 panel; more JFX_Thread.operations;

basic support for Java FX;

maintain stable state of node entries from last round -- bypass slightly different Thm.join_theory_proofs;

removed unused material;

discontinued complicated/unreliable notion of recent proofs within context;

central management of forked goals wrt. transaction id; clarified stable_exec_id: consider ragular failure as stable; more robust counting of forked proofs, with global reset after cancellation due to document editing;

merged