removed remains of Oheimb's double-space (cf. 0a5af667dc75);

tuned;

merged

updated two components

simplify code slightly

avoid non-ASCII sign

generate a parameterized correspondence relation

quot_thm_crel

add option_fold

add binomial_ge_n_over_k_pow_k

removed tool that was never finished

added file headers

updated MaSh doc

moved MaSh's Python code into Isabelle

updated NEWS etc.

distinguish declated tfrees from other tfrees -- only the later can be optimized away

clarified status of Legacy_XML_Syntax, despite lack of Proofterm_XML;

reset active areas on content update;

more general sendback properties; support for padding of line boundary, e.g. for ad-hoc insertion of commands via 'help';

tuned command descriptions;

refined outer syntax 'help' command;

tuned signature;

always reset active areas;

no special treatment of control_reset, in accordance to other control styles;

tuned signature;

tuned signature;

tuned signature;

tuned signature; uniform view.fontsize fallback;

renamed main plugin object to PIDE;

tuned signature -- avoid intrusion of module Path in generic PIDE concepts;