* R/shiny-ui-base.R(txt_file_input): Add new argument `default'.

* R/shiny-ui-base.R(add_mzML_files): Remove.

* R/shiny-ui-config.R(add_mzML_files): Add.

* R/shiny-ui-base.R(txt2tags,combine_tags): Move
  to R/shiny-ui-config.R.

* R/shiny-ui-config.R(get_tags_from_txt): Turn into reactive from
  eventReactive. Will it now execute even when button non-pressed?

(server_conf) <rv$m observer>: Add tag handling.

(server_conf) <mzMLtabCtrl render>: Adapt to new tag handling.

Sorry :)

* R/shiny-ui-base.R(vols,vol_f,volumes): Obsoleted. Removed.

(mk_roots): New function.

* R/shiny-ui-config.R(get_proj_vol,get_proj_path): Obsoleted. Removed.

(server_conf) <shinyFile observers>: Adapt to mk_roots functionality.
<input$switchProjB observer>: Same as above.

* R/shiny-ui-base.R, R/shiny-ui-base.R (rv_lst2lst, lst2rv_lst,
  rev2list, list2rev): rv_lst2lst -> rev2list, lst2rv_lst -> list2rev

* R/shiny-ui-base.R(isol): New function.
  Alias for isolate.

* R/shiny-ui-base.R(add_mzML_files): New function.

* R/shiny-ui-base.R(txt2tags,combine_tags): New functions.

Needed for shiny UI processing of mzml table.

* R/shiny-ui-base.R(conf2rv_conf,lst2rv_lst): Replace conf2rv_conf
  with lst2rv_lst which is more general and able to work out
  recursively what needs to be change into a reactive values list.

* R/shiny-ui-base.R(rv_conf2conf,rv_lst2lst): Rename rv_conf2conf to
  rv_lst2lst and make it universal. Instead of acting on the fixed set
  of names expected inside conf, crawl through the nested list
  recursively and to the smart thing.

R/shiny-ui-base.R(validate1): Fix.

* R/shiny-ui-base.R, NAMESPACE:
  importFrom(shiny,validate) now correct.

* R/shiny-ui-base.R(volumes): Attach the current working directory.

R/shiny-ui-base.R(volumes): New function.

The result for shinyFiles::getVolumes().

* R/shiny-ui-base.R(validate,validate1):

Function validate changed back to shiny original. Introduced validate1
when there is no need for `need'.

* R/mix.R(read_conf): New function.

* R/shiny-ui-base.R(conf2rv_conf): New function.
  In order to save config as yaml function, the reactive form of
  config must be converted to a list.

 (input$restoreConfB): New observer.

* R/shiny-ui-base.R(server_conf), R/shiny-ui-top.R(server): Now that
  we update rv inside server_conf, it must return it in some way.

* R/shiny-ui-base.R(obsrv_e,validate,vol_f): New wrappers.

* R/shiny-ui-config.R(saveConfB): Change default filename and
  filetype.

* R/shiny-ui-config.R(input$saveConfB): New observer.

* R/shiny-ui-base.R(react_v,react_f,react_e, obsrv, vols): New
  functions.
  Wrap functions that are used a lot.

* R/shiny-ui-base.R(path2vol): New function.

* R/shinyUI.R: Removed.
  A monolithic file that became difficult to maintain.

* R/shiny-ui-top.R: New file. Contains top-level server and interface
  functions.

(mk_ui): New function. Replace old mkUI and serve as a top-level user
interface definition function.

(mk_shinyscreen): Removed most of it. Only the top-level content
remains.

* DESCRIPTION: Updated.

* R/shiny-ui-base.R: New file. Shiny wrappers.