history: add poc of parsing with gmarkup

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
avoid out of bound

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
update TODO

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
history: drop libxml for reading

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
core: drop libxml dependency

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
Merge branch 'drop-libxml'

* drop-libxml:
  core: drop libxml dependency
  history: drop libxml for reading
  history: add poc of parsing with gmarkup
update NEWS

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
update TODO

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
fix settings ui

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
fix linking with installed gpaste

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>