misc...
* texbro: disable alpha transparency by def; isn't good in half of cases
* find/replace: tooltip helper note about search mode
* Entity: arrowheads, showing direction of connection-lines in addition to color-code; New algorithm: are visible in all orthogonal projections
* tweak: do not render 'misc_model' & 'light' entity names
* filters: patches: +filter ones with surfaceparm playerclip
* translucent filter also works for shaders with qer_alphafunc
* filter areaportal, if single face matches (allows case with other faces, using 'skip')
* filter translucent, if single face matches
* filter liquids by surfaceparm {water, lava, slime} in addition to textures/liquids path
misc...
* fix: select inside and touching: ignored ANY filters and hiding, and region
* fix: M3 tex paint/grab ignored _hidden_ models
* fix: M3 tex paint/grab ignored group ent (world, triggers, et cetera), model filters
* fix: shift+a by tex: ignored group ent (world, triggers, et cetera) filters
* fix: tex find/replace: ignored any filters, regioning & hiding
* fix: shift+a by classname: ignored filters, hiding, region
* fix: floor walker ignored group ent filters
* fix: csg subtract ignored group ent filters
* fix: invert selection: ignored group ent filters
* fix: tex find/replace: 'select by shader' mode for patches (was replacing with notex instead)
* fix: select inside and touching: were selecting group ents, as single unit (=sensitive to parent node and its bbox)
* fix: csg merge two group ents = empty group ent
* fix: csg subtract group ent completely = empty group ent
* fix: hollow group ent: could produce empty group ent
* func_groups are filtered by world filter only, not entities one
* new func_group filter, filterBar button; Rightclick = create func_group
