LablGtk 2.18.12

Bug fixes and a few extra features

Changes:

2021.12.24[Jacques]

• Remove naked pointers and Obj.truncate for compatibility with 5.00 (#145)

2021.12.18 [Jacques]

• Add WRAP_WIDTH, WRAP_MODE tags to cell_properties_text (#146) [Nathan Guermond]

2021.12.03 [Jacques]

• Fix #141: lablgtk2 runs OCaml code inside blocking section (#142) [Bart Jacobs]

2021.07.05 [Jacques]

• Add partial support for OCaml 5.00 (#129) [Kate Deplaix]
• Fix warnings on Bytes_val

2020.08.31 [Jacques]

• Fix #116 : problem with GPack.layout adjustments (reported by Vasile Toraru)